FprEN 16781

SLOVENSKI STANDARD
01-december-2024
Tekstilni izdelki za otroke - Varnostne zahteve in preskusne metode za otroške
spalne vreče, ki se uporabljajo v posteljici
Textile child care articles - Safety requirements and test methods for children's sleep
bags for use in a cot
Textile Artikel für Säuglinge und Kleinkinder - Sicherheitstechnische Anforderungen und
Prüfverfahren für Kinderschlafsäcke zur Nutzung in einem Babybett
Articles textiles de puériculture - Exigences de sécurité et méthodes d’essai pour les
gigoteuses destinées à être utilisées dans un lit à nacelle
Ta slovenski standard je istoveten z: prEN 16781
ICS:
97.160 Tekstilije za dom. Perilo Home textiles. Linen
97.190 Otroška oprema Equipment for children
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 16781
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2024
ICS 97.160; 97.190 Will supersede EN 16781:2018
English Version
Textile child care articles - Safety requirements and test
methods for children's sleep bags for use in a cot
Articles textiles de puériculture - Exigences de sécurité Textile Artikel für Kleinkinder und Säuglinge -
et méthodes d'essais pour les gigoteuses d'enfants Sicherheitstechnische Anforderungen und
utilisées dans un lit à nacelles Prüfverfahren für Babyschlafsäcke für Gebrauch in
einem Kinderbettnestchen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 248.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16781:2024 E
worldwide for CEN national Members.

prEN 16781:2024 (E)
Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General . 12
5 Requirements and test methods . 13
5.1 Mechanical and physical hazards (see B.3) . 13
5.1.1 Suffocation hazards (see B.3.1) . 13
5.1.2 Entrapment hazards (see B.3.2) . 17
5.1.3 Choking hazards (see B.3.3) . 18
5.1.4 Entanglement hazards (see B.3.4) . 19
5.1.5 Hazardous edges and projections (see B.3.5) . 19
5.1.6 Ingestion hazards (see B.3.6) . 21
5.2 Chemical hazards (see B.4) . 21
5.2.1 Migration of certain substances . 21
5.2.2 Formaldehyde . 22
5.2.3 pH . 22
5.2.4 Flame retardants . 22
5.3 Thermal hazards – Hyperthermia (see B.5) . 22
5.3.1 Requirements . 22
5.3.2 Test method . 22
5.4 Flammability and burning hazards (see B.6) . 23
5.5 Hygiene hazards (see B.7) . 23
5.5.1 Requirements and methods . 23
6 User information . 24
6.1 General . 24
6.2 Marking . 24
6.3 Purchase information . 25
6.4 Instruction for use . 25
6.5 Plastic packaging . 26
Annex A (informative) Inherently safe design . 27
Annex B (informative) Rationale . 31
B.1 General . 31
B.2 Design characteristics . 31
B.2.1 Inherently safe design and hazards . 31
B.3 Mechanical and physical hazards . 33
B.3.1 Suffocation hazards (external asphyxiation) . 33
B.3.2 Hazards of entrapment of fingers and toes, ischemia . 35
B.3.3 Choking hazards (internal asphyxiation) by aspiration or ingestion of small parts . 35
B.3.4 Entanglement hazards (strangulation) . 36
B.3.5 Hazardous edges and projections . 37
prEN 16781:2024 (E)
B.3.6 Ingestion hazards . 37
B.4 Chemical hazards . 38
B.4.1 Hazards related to harmful substances . 38
B.4.2 Hazards related to migration of certain substances . 38
B.4.3 Hazards related to formaldehyde . 39
B.4.4 pH . 39
B.5 Thermal hazards (hyperthermia and hypothermia) . 39
B.6 Flammability and burning hazards . 40
B.7 Hygiene hazards . 40
B.7.1 Washable (see 5.5.1.1) . 40
B.7.2 Clean and free from infestation and foreign materials (see 5.5.1.2) . 41
B.7.3 Feather filled products (see 5.5.1.3) . 41
B.7.4 Used recycled fibres (see 5.5.1.4) . 41
B.7.5 Hygiene hazards related to stain (see 5.5.1.5) . 42
Annex C (informative) Supplementary information on thermal hazards . 43
C.1 Background information. 43
C.2 Thermal resistance measurement . 43
C.3 Rationale for guidance to the purchaser and/or user . 44
C.4 Relationship between thermal resistance and thickness or mass per unit area
(surface density) . 47
Annex D (informative) Supplementary information on slide fastener positions . 48
Annex E (informative) Specific marking, purchase information and user instruction . 49
Annex F (informative) Topics for further investigations . 50
F.1 Dimensions of armholes, width, length . 50
F.2 Thermal comfort . 50
Annex ZA (informative) Relationship between this European Standard and the
requirements of Directive 2001/95/EC aimed to be covered . 51
Bibliography . 53

prEN 16781:2024 (E)
European foreword
This document (prEN 16781:2024) has been prepared by Technical Committee CEN/TC 248 “Textiles
and textile products”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 16781:2018, which has been technically revised. The main changes
compared to the previous edition are as follows:
— prEN 16781:2024 has been restructured to be hazard-based;
— Clause 1 The scope has been clarified;
— Clause 2 Additional normative references are added to update to either specification standards
(EN 16732, CEN/TS 17394-1) or standardised test methods (EN 17394-2, CEN/TS 17394-3,
CEN/TS 17394-4, EN 17667);
— Clause 3 New terms and definitions have been added;
— 5.1.1 Requirements on slide fasteners, buttons and press fasteners have been clarified. Requirement
related to weighted sleep bag has been added;
— 5.1.1.1.7 A child height range has been added in the requirement table, as well as requirements for
sleep bag length;
— 5.1.1.2.1 The test method for the neck opening circumference has been improved to determine the
neck opening circumference at the relaxed state as it is when the sleep bag is used by taking into
consideration the mechanical behaviour of any sleep bag materials;
— 5.1.2 Requirements related to entrapment hazards have been clarified regarding the textile and non-
textile materials;
— 5.1.3 Requirements on attached components refer to CEN/TS 17394-1:2021 and test methods on
attached components refer to EN 17394-2, CEN/TS 17394-3 or CEN/TS 17394-4;
— 5.1.4 Requirements and test method on the sleep bag length have been added;
— 5.1.5 The definition of the back zone has been revised and detailed;
— 5.2 Requirements on migration limits for certain substances have been updated;
— 5.3 Requirements on thermal resistance have been detailed and the test method refers to EN 17667;
— 6.2, 6.3 and 6.4 Declaration of the thermal resistance related to multi-seasonal sleep bags has been
added;
— 6.4 A warning and an information have been added;
— Annex A is added to deal with inherently safe design;
— Annex B Some clarifications have been introduced. Rationale for sleep bag length has been added;
prEN 16781:2024 (E)
— Annex C Examples of the relationship between ambient room temperature of the sleep environment,
thermal resistance of the child sleep bag and choice of sleepwear have been added;
— Annex E Summary of specific marking, purchase information and user instruction has been updated;
— Annex ZA is added for the correspondence of the requirements between this document and the
EU Directive.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
Following the publication and implementation of this document in CEN member countries, it has been
agreed by CEN TC 248 that there should be an 18-month transition period from the date of availability to
allow manufacturers to develop and produce garments that conform to the standard. This period is also
to allow the supply chain, from manufacturer through to the consumer, to be cleared of non-conforming
children's sleep bags for use in a cot.

prEN 16781:2024 (E)
Introduction
The European Commission Mandate M/497, followed by Product and Service safety in the Directorate-
General Health and Consumers, under the title “Standardisation mandate to CEN, CENELEC and ETSI on
the safety of child-care articles; Cluster 2- risks in the sleeping environment; Mattresses for cots, cot bumpers,
suspended beds for children, duvets for children, sleep bags for children”, issued on 2011-10-20 and
accepted by CEN BT on 2011-12-20, requested that CEN develop standards or specifications including
safety requirements and test methods, warnings and instructions to adult users in order to address the
possible hazard posed by these products.
The aim of this document is to minimize the main hazards posed by products in the sleep environment of
babies and young children.
For the development of this document, attention was paid to:
— the child’s stages of development (age, height, weight, ability, etc.). The safety of child-care articles,
in relation to the risks in the sleeping environment (articles such as mattresses for cots, cot bumpers,
suspended beds for children, duvets for children, sleep bags for children) was studied in relation to
children up to 3 years of age. In this document, the main hazards (suffocation and overheating) are
more common to children up to 24 months;
— the intended or foreseeable use of the product, bearing in mind a child’s behaviour. Such behaviour
exposes children to injury in ways that differ from those of adults, making children a particularly
vulnerable group in society;
— the hazard presented by the product in the circumstances under which the product and the child
come into contact with each other.
Where sleep bags are used by hospitals when nursing sick children, openings for access for tubing to the
patient or monitoring devices to monitor the patient, or use of fastenings durable to industrial
laundry processing used by hospitals, are considered.
IMPORTANT — In order to comply with the essential safety requirements, this document is
hazard based. As this document only deals with a particular textile child-care article, i.e. children's
sleep bags, design characteristics have been specified only when necessary in order to introduce
inherently safe design. These characteristics have been specified in a manner which allows
compliance to be checked by interested parties, from designers to market surveillance authority
officers.
prEN 16781:2024 (E)
1 Scope
This document specifies requirements for the safety of children's sleep bags which are used in the
children's domestic sleeping environment (i.e. not under supervision) and designed to provide sufficient
warmth so as to remove the need for additional bedding when sleeping in a cot or similar product
(e.g. crib/cradle) in which a child is contained. It is applicable to products for use by children up to the
age of 24 months.
NOTE The informative Annex F lists topics of further investigations, which might lead to necessary
improvement of the safety requirements of children's sleep bags.
This document does not apply to products
— designed for use during the care of premature children, or
— designed for children of low birthweight (i.e. 2,5 kg – see B.1), or
— for use by children who have the ability to climb out of a cot, or
— for use by children when sleeping in a bed, or
— for outdoor use or to products designed to keep a child warm in a pushchair or car seats (e.g. foot
muff).
If a part of the children's sleep bag is designed to offer additional function (e.g. play function), this part
will, in addition to the following requirements, be subjected to safety requirements related to relevant
standards (see B.1).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 71-3:2019+A1:2021, Safety of toys — Part 3: Migration of certain elements
EN 1103:2005, Textiles — Fabrics for apparel — Detailed procedure to determine the burning behaviour
EN 1162:1996, Feather and down — Test methods — Determination of the oxygen index number
EN 1164:1998, Feather and down — Test methods — Determination of the turbidity of an aqueous extract
EN 12935:2001, Feather and down — Hygiene and cleanliness requirements
prEN 16732:2024, Slide fasteners (zips) — Specification
CEN/TS 17394-1:2021, Textiles and textile products — Part 1: Safety of children’s clothing — Security of
attachment of attached components to infants’ clothing —Specification
EN 17394-2:2020, Textiles and textile products — Part 2: Safety of children’s clothing — Security of
attachment of buttons — Test method

1 prEN 16732 (WI00248747) is under CEN Enquiry preparation. CEN enquiry from 2024-02-01 to 2024-04-25.
prEN 16781:2024 (E)
CEN/TS 17394-3:2021, Textiles and textile products — Part 3: Safety of children’s clothing — Security of
attachment of metal mechanically applied press fasteners — Test method
CEN/TS 17394-4:2021, Textiles and textile products — Part 4: Safety of children’s clothing — Security of
attachment of components except buttons and metal mechanically applied press fasteners — Test method
EN 17667:2022, Test method — Determination of thermal resistance of filled textile articles and similar
items using small guarded hotplate apparatus
EN ISO 105-A01:2010, Textiles — Tests for colour fastness — Part A01: General principles of testing
(ISO 105-A01:2010)
EN ISO 105-A11:2012, Textiles — Tests for colour fastness — Part A11: Determination of colour fastness
grades by digital imaging techniques (ISO 105-A11:2012)
EN ISO 105-E01:2013, Textiles — Tests for colour fastness — Part E01: Colour fastness to water
(ISO 105-E01:2013)
EN ISO 139:2005, Textiles — Standard atmospheres for conditioning and testing (ISO 139:2005)
EN ISO 3071:2020, Textiles — Determination of pH of aqueous extract (ISO 3071:2020)
EN ISO 4045:2018, Leather — Chemical tests — Determination of pH and difference figure (ISO 4045:2018)
EN ISO 6330:2021, Textiles — Domestic washing and drying procedures for textile testing (ISO 6330:2021)
EN ISO 14184-1:2011, Textiles — Determination of formaldehyde — Part 1: Free and hydrolysed
formaldehyde (water extraction method) (ISO 14184-1:2011)
EN ISO 17226-1:2021, Leather — Chemical determination of formaldehyde content — Part 1: Method using
high performance liquid chromatography (ISO 17226-1:2021)
ISO 105-F10:1989, Textiles — Tests for colour fastness — Part F10: Specification for adjacent fabric:
Multifibre
ISO 4915:1991, Textiles — Stitch types — Classification and terminology
ISO 7000, Graphical symbols for use on equipment — Registered symbols
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp

As impacted by EN ISO 139:2005/A1:2011.
As impacted by ISO 105-F10:1989/A1:2009.
prEN 16781:2024 (E)
3.1
sleep bag
bedding item consisting of a full-length fabric bag with neck opening and armholes and designed to
contain a child
Note 1 to entry: The sleep bag is not considered to be a garment.
Note 2 to entry: The sleep bag can be single or multi-layered, and with or without filling material.
Note 3 to entry: The sleep bag can be used in conjunction with sleepwear.
3.2
cot
bed for a child consisting of a base and enclosed by high sides to prevent the child from falling out
3.3
harm
injury or damage to the health of people
[SOURCE: ISO/IEC Guide 51:2014, 3.1, modified – “or damage to property or the environment” has been
deleted.]
3.4
hazard
potential source of harm (3.3)
[SOURCE: ISO/IEC Guide 51:2014, 3.2]
3.5
risk
combination of the probability of occurrence of harm (3.3) and the severity of that harm
[SOURCE: ISO/IEC Guide 51:2014, 3.9, modified — Note 1 to entry has been deleted.]
3.6
inherently safe design
measures taken to eliminate hazards (3.4) and/or to reduce risks (3.5) by changing the design or
operating characteristics of the product or system
[SOURCE: ISO/IEC Guide 51:2014, 3.5]
3.7
drawstring
cord, chain, ribbon, string or tape, made of any textile or non-textile material including elastic material,
which passes through a channel, loop(s) or eyelet(s) or similar, to adjust the size of the opening, or part
of the garment or to fasten the garment itself
[SOURCE: EN 14682:2014, 2.5]
3.8
cord
chain, ribbon, string or tape of any textile or non-textile material, including elastic material
prEN 16781:2024 (E)
3.9
asphyxiation
insufficient supply of air to the airways
Note 1 to entry: Insufficient supply of air could be caused, e.g. by closing off the flow of air as a result of choking
or suffocation or by entrapment in an unventilated, confined space.
[SOURCE: EN 71-1:2014+A1:2018, 3.4]
3.10
choking
closing off the flow of air as a result of internal asphyxiation (3.9)
Note 1 to entry: Choking can, for example, be caused by inhalation of an object, by an object becoming wedged in
the mouth or pharynx, or by an object becoming lodged over the entrance to the lower airways.
[SOURCE: EN 71-1:2014+A1:2018, 3.9]
3.11
suffocation
closing off the flow of air as a result of airway obstruction external to the mouth and nose
[SOURCE: EN 71-1:2014+A1:2018, 3.59]
3.12
monofilament thread
single thread of man-made fibre
3.13
burr
roughness, caused by not cleanly severing or finishing the material
[SOURCE: EN 71-1:2014+A1:2018, 3.6]
3.14
surface flash
rapid spread of flame over the surface of a material without ignition of its basic structure
[SOURCE: ISO 4880:1997 and its note to entry: Note 1 to entry: “However, if the latter occurs
simultaneously or sequentially with surface flash, it is not considered as a part of surface flash.”]
3.15
label
piece of material displaying information and permanently attached to the textile product
3.16
hang tag
label intended to be removed from the textile product before first use
3.17
small part
component or piece of a component which when dropped, without compression, into the small parts
cylinder (Figure 1) in any orientation, fits entirely within the cylinder
prEN 16781:2024 (E)
Dimensions in millimetres
Figure 1 — Small parts cylinder
3.18
back zone
area on the back of the sleep bag, when laid down flat, starting at the side neck point and extending
downwards from the side neck point and finishing on both sides with a margin inwards from armholes
and sides
Note 1 to entry: See Figure 7.
3.19
child height
stature (3.19.1) or recumbent length (3.19.2) of a child
3.19.1
stature
vertical distance from the highest point of the head in the median line to the ground
Note 1 to entry: Identical to stature (body height) in ISO 7250-1.
Note 2 to entry: The term height is commonly used and covers both stature (3.19.1) and recumbent length
(3.19.2).
[SOURCE: EN ISO 8559-1:2020, 5.1.1]
3.19.2
recumbent length
horizontal distance from the vertical plate to which the soles touch to the crown of the head in the median
line
Note 1 to entry: The term ‘height’ is commonly used and covers both stature (3.19.1) and recumbent
length (3.19.2).
[SOURCE: EN ISO 8559-1:2020, 5.1.2]
prEN 16781:2024 (E)
3.20
press fastener
fastening device consisting of a male component and a female component that are attached to different
parts of a garment and which are fastened by aligning the two components and pressing them together
Note 1 to entry: Press fasteners include poppers and snaps.
Note 2 to entry: These may be functional or decorative.
[SOURCE: CEN/TS 17394 3:2021, 3.1]
3.21
slide fastener (zip)
fastening device consisting of two flexible, interlocking stringers, with or without end stops, and one or
more sliders so arranged that by moving the slider along the stringers in one direction an opening is
formed, and by moving it in the other direction the opening is closed
[SOURCE: prEN 16732:2024, 3.1]
3.22
locking device
device incorporated in the slider unit restricting its free movement along the slide fastener length in an
opening direction
Note 1 to entry: The locking device might operate either automatically on release of the puller or by manual
pressure on the puller.
[SOURCE: prEN 16732:2024, 3.8]
3.23
weighted sleep bag
sleep bag in which one or more areas include additional functional weighting for the sole purpose of
increasing the pressure on the body
3.24
traceability
ability to trace the history, application, location or source(s) of a material or product throughout the
supply chain
[SOURCE: ISO 9000:2015, 3.6.13, modified — The wording has been modified. Notes 1 and 2 to entry
have been deleted.]
4 General
The requirements provided in this document are the characteristics for a sleep bag which are considered
to result in inherently safe design.
NOTE 1 Inherently safe design is gathered in Annex A. Table A.1 summarizes the relationship between
inherently safe design and hazards and for which the entries are related to the design.
NOTE 2 Rationales for the inclusion of some of the requirements given in this document are given in Annex B.
Table B.1 summarizes the relationship between inherently safe design and hazards and for which the entries are
related to the hazards.
prEN 16781:2024 (E)
5 Requirements and test methods
5.1 Mechanical and physical hazards (see B.3)
5.1.1 Suffocation hazards (see B.3.1)
5.1.1.1 Requirements
5.1.1.1.1 There shall be no plastic transfer (e.g. plasticised print) or coated fabrics having a continuous
area which exceeds 100 mm by 100 mm. Areas of coated fabric shall not exceed 10 % of the total area of
the sleep bag (Table A.1 – see B.3.1.1).
5.1.1.1.2 Only buttons, metal press fasteners or slide fasteners shall be used for fastening the neck
opening and the armhole (Table A.1 – see B.3.1.3, B.3.1.4).
5.1.1.1.3 Slide fasteners shall have a slider locking device in compliance with the performance
requirements of code B of prEN 16732:2024 (Table A.1 – see B.3.1.3).
5.1.1.1.4 Where a slide fastener is placed to fasten the neck opening, the slide fastener shall be an open-
end system and the combination of the box and the insert pin shall be placed at the neck opening. This
means that the top stops are not placed at the neck opening and that a slide fastener with only one slider
is used (Table A.1 – see B.3.1.2). See Figure 2.

Key
1 box
2 insert pin
3 top stop
Figure 2 — Open-end slide fastener
5.1.1.1.5 Where buttons or metal press fasteners are used for fastening the neck opening and the
armhole, the fastenings (button and its buttonhole, male and female parts of press fastener) shall remain
closed when tested according to 5.1.1.2.1, but with a mass applying a force (F) of (10 ± 1) N (see B.3.1.2).
5.1.1.1.6 Weighted sleep bag are not permitted (see B.3.1.7).
prEN 16781:2024 (E)
5.1.1.1.7 Neck openings
Neck openings, in relation to the child height range, shall comply with the requirements according
to Table 1, when measured in accordance with 5.1.1.2.1 (Table A.1 – see B.3.1.2).
NOTE Complementary approaches based on armholes and chest width are given in informative Annex F.
The neck opening can be adjusted within the same child height range so that the neck opening dimensions
shall remain in compliance with the requirements of Table 1.
Table 1 — Sleep bag's neck openings and length in relation to the child height
a Neck opening Length of
Child height range
circumference
b
(cm) sleep bag
minimum maximum minimum
(cm) (cm) (cm)
45 to 55 26 30 60
50 to 65 28 32 70
65 to 80 30 39 85
80 to 95 31 41 100
a
If “age” is used as a sleep bag size designation, the relation between height
and approximate age can be found in Table B.2.
b
Sleep bag length: see 5.1.4.1.5

With the exception of the 45 to 55 range, in case the child height range claimed by the manufacturer is
crossing more than one height range, but no more than two ranges, as stated in Table 1, then, the
minimum circumference requirement of the neck opening shall be the highest of the concerned child
height ranges and the maximum circumference requirement the smallest height range of the concerned
child height ranges.
EXAMPLE 1 If the sleep bag size is claimed for a child height range from 45 cm to 55 cm, the minimum
circumference of the neck opening should be 26 cm and the maximum 30 cm and the minimum length should
be 60 cm.
EXAMPLE 2 If the sleep bag size is claimed for a child height range from 50 cm to 65 cm, the minimum
circumference of the neck opening should be 28 cm and the maximum 32 cm and the minimum length should
be 70 cm.
EXAMPLE 3 If the sleep bag size is claimed for a child height range from 60 cm to 75 cm, the minimum
circumference of the neck opening should be 30 cm and the maximum 32 cm and the minimum length should
be 85 cm.
EXAMPLE 4 If the sleep bag size is claimed for a child height range from 70 cm to 85 cm, the minimum
circumference of the neck opening should be 31 cm and the maximum 39 cm and the minimum length should
be 100 cm.
EXAMPLE 5 If the sleep bag size is claimed for a child height range from 60 cm to 85 cm, the minimum
circumference of the neck opening should be 31 cm and the maximum 32 cm. Experiences shows that it is extremely
difficult in production, which could expose children to hazards.
prEN 16781:2024 (E)
5.1.1.2 Test methods
5.1.1.2.1 Neck opening circumference
The apparatus shall consist of a fixed hook, a moveable hook, and a means of guiding the moveable hook
in a straight line (e.g. rigid rod, guide rails). Both hooks shall be a L-shaped. The part of the hooks on
which the sample is mounted shall be no more than 3,0 mm in width or in diameter. The moving hook is
connected to a mass using an inelastic wire such that a force of (1,0 ± 0,2) N, and then a force
of (3,0 ± 0,2) N are applied to the neck opening either directly or via a pulley. The distance between the
hooks shall be measured using a ruler or other measuring device graduated in divisions of not greater
than 1 mm.
NOTE The use of a pulley permits the sleep bag to be placed and measured in a horizontal orientation but for
the force to be applied vertically using the deadweight principle. The use of a horizontal orientation permits the
sleep bag to be supported on a table without the need for additional means of support for the foot of the sleep bag
needed to avoid twisting and distortion during the measurement.
Fold the sleep bag along an axis between the centre-back and centre-front points taking care to align the
fastenings (see Figure 3). Apply the hooks to both the centre-front and centre-back points and apply the
force of 1 N to the neck opening. Measure the length of neck opening l to the nearest 1 mm. Apply the
1N
force of 3 N and measure the length of neck opening l to the nearest 1 mm.
3N
If a rigid component or inflexible opening is at the centre-front point, move the measurement point
slightly away from this rigid part (2 cm has been found suitable) and the same displacement of the centre-
back point.
The length of the neck opening, l , is calculated according to the following Formula (1).
0N
3× ll−
1N 3N
l = (1)
0N
where
l is the length of the neck opening at 0 N, expressed in mm;
0N
l is the length of the neck opening at 1 N, expressed in mm;
1N
l is the length of the neck opening at 3 N, expressed in mm.
3N
The neck opening circumference is equal to twice the calculated length of the neck opening and is
calculated according to the following Formula (2) and rounded at the nearest 1 cm.
2× l
0N
N = (2)
oc
where
N is the circumference of the neck opening, expressed in cm;
oc
l is the length of the neck opening at 0 N, expressed in mm.
0N
prEN 16781:2024 (E)
a) example of measurement devices

b) neck opening measurement c) neck opening measurement
(example of sleep bag with press fasteners at (example of sleep bag with seam at shoulder)
shoulder)
Key
1 fixed hook
2 ruler
3 centre back
4 centre front
l length of the neck opening
F force applied
Figure 3 — Principle of the neck opening measurement
prEN 16781:2024 (E)
5.1.2 Entrapment hazards (see B.3.2)
5.1.2.1 Requirements
5.1.2.1.1 Chain stitches, as described in ISO 4915:1991, are not permitted (Table A.1 – see B.3.2.2).
5.1.2.1.2 Monofilament thread shall not be used (Table A.1 – see B.3.2.2).
5.1.2.1.3 For accessible faces of the article, the maximum length of uncut float threads or uncut stitches
shall be 10 mm, and the maximum length for cut threads or cut stitches shall be 10 mm (Table A.1 –
see B.3.2.2).
5.1.2.1.4 The ends of labels or the edge of raw edge fabric shall be secured to prevent unravelling
(Table A.1 – see B.3.2.2). The security of the ends of the labels can be confirmed by carrying out a tactile
inspection.
5.1.2.1.5 Labels which are in the form of a loop (loop label) or inserted in a way that they can create a
loop when the sleep bag is used shall not be attached to the sleep bag. However, where these are attached
to the upper inside on the back panel, they are acceptable (Table A.1 – see B.3.2.2).
5.1.2.1.6 Fabrics with open structures such as mesh or lace fabric, shall not be used.
5.1.2.1.7 If not covered in 5.1.2.1.1 to 5.1.2.1.6, when tested in accordance with 5.1.2.2, there shall be
no completely bounded openings in non-textile materials (such as hole in a slider fastener puller, in an
eyelet) between 5 mm and 12 mm, unless the depth of penetration is less than 10 mm (see B.3.2.1).
5.1.2.2 Test method
The test probes shall be made from plastic or other smooth, hard material, which can be mounted on a
force measuring device.
Determine whether the 5 mm test probe (Figure 4) with an applied force of up to 30 N, enters 10 mm or
more into any completely bounded circular openings in rigid materials, in any possible orientation.
Dimensions in millimetres
Figure 4 — 5 mm test probes for openings in rigid materials
If the 5 mm test probe enters 10 mm or more, then the 12 mm test probe (Figure 5) shall also
enter 10 mm or more with an applied force of up to 5 N.

Figure 5 — Test probe for seams
prEN 16781:2024 (E)
5.1.3 Choking hazards (see B.3.3)
5.1.3.1 Requirements
5.1.3.1.1 Children's sleep bags shall not have any pockets (Table A.1 – B.3.3.1).
5.1.3.1.2 Slide fasteners shall comply with prEN 16732:2024 and shall have at least the performance
requirements of code Band with the requirements of Table 2, as stated in prEN 16732:2024. (Table A.1)
5.1.3.1.3 Slide fasteners shall not have a removable slider (Table A.1 – see B.3.3.2). The absence of a
removable slider may be confirmed by manual inspection.
5.1.3.1.4 Slide fasteners shall include a top stop (see B.3.3.2) and either a bottom stop or be secured in
a manner so that the slider cannot be removed from the chain. (Table A.1). Claw type stops are not
recommended. The presence of the top stop and the bottom stop may be confirmed by visual inspection
5.1.3.1.5 Buttons shall not be attached by chain stitch (Table A.1 – see B.3.2.2).
5.1.3.1.6 There shall be no pom-poms or tassels on children's sleep bags (Table A.1 – see B.3.3.2).
5.1.3.1.7 There shall be no beads, sequins or diamantés on children's sleep bags (Table A.1 –
see B.3.3.2).
5.1.3.1.8 There shall be no glitter prints (e.g. plastic glue glitter and spread over glitter) on sleep bags.
5.1.3.1.9 Metal press fasteners with plastic top cover, two-part buttons (buttons made of more than
one piece), fabric-covered buttons and buttons made of wood or shells shall not be used (Table A.1 –
see B.3.3.3, B.3.3.4).
5.1.3.1.10 Seams shall have a seam allowance (distance between the fabric edge and sewing line) of no
less than 5 mm (Table A.1 – see B.3.3.7).
5.1.3.1.11 Where filling materials are used, seams shall be sewn so as to meet the following conditions
(Table A.1 – see B.3.3.7):
a) the seams shall have a minimum of 10 stitches per 3 cm; and,
b) the 12 mm probe shall not be inserted through any one opening in the seam when the seam is tested
as follows:
Use clamps with jaws to which discs with a diameter of 19 mm are affixed. Attach the clamps not less
than 30 mm apart and equidistant to the seam. Gradually apply a force of (70 ± 2) N between the two
clamps over a period of approximately 5 s. Maintain the force for 10 s. Apply the test to this seam
only once. Determine whether the front part of the 12 mm probe (see Figure 6) can be inserted
through any one opening in the seam, using a maximum force of 10 N.
NOTE Decorative stitches and quilting stitches are excluded from this requirement.
5.1.3.1.12 If not covered in 5.1.3.1.1 to 5.1.3.1.11,
Sleep bags shall not contain attached components which do not comply with CEN/TS 17394-1:2021.
Attachment of buttons of all kinds shall be tested according to EN 17394-2:2020.
Attachment of metal mechanically applied fastenings shall be tested according to CEN/TS 17394-3:2021.
prEN 16781:2024 (E)
And all other attached components shall be tested according to CEN/TS 17394-4:2021.
5.1.4 Entanglement hazards (see B.3.4)
5.1.4.1 Requirements
5.1.4.1.1 There shall be no drawstrings attached to the children's sleep bags (Table A.1 – see B.3.4.1).
5.1.4.1.2 There shall be no cords longer than 75 mm on children's sleep bags (Table A.1 – see B.3.4.2)
5.1.4.1.3 Looped labels are only allowed when used in the inside back neck seam
...