Laughing young girl sitting on a blue pouf, wearing a beige patterned Sleep Onesie with built-in foot cuffs.

Preschooler sitting in a wooden rocking chair playing a ukulele, wearing a beige patterned Sleep Onesie with cuffed ankles.

Preschooler walking while pulling a wooden toy, wearing a slim-fit beige patterned Sleep Onesie, with text describing its design for toddlers and preschoolers.

Toddler sitting in a wooden rocking chair wearing a beige patterned Sleep Onesie, with callouts highlighting fold-over hand and foot cuffs designed for warmth and scratch protection.

Toddler wearing a beige patterned Sleep Onesie standing next to a wooden rocking chair with a teddy bear, with text highlighting an Organic Toddler Pillow.

Preschooler wearing a beige patterned 2.5 TOG Sleep Onesie, standing while holding the string of a small wooden pull-along horse toy.

Back view of the ergoPouch Sleep Onesie 2.5 TOG Melody

2.5 TOG

Sleep Onesie 2.5 TOG Melody

Name: Sleep Onesie 2.5 TOG Melody
Brand: ergoPouch
SKU: EPSO-2.5T06-12MMY26
Price: 49.95 GBP
Availability: InStock

The Sleep Onesie is a TOG-rated sleeping bag alternative, designed to be worn on its own during sleep or with a Layer/PJs underneath for warmth and comfort.

Size

Size Guide

6-12M 12-24M 2-3Y 4-5Y

Size Guide

Sleep Onesie

CM Inches

Please use your child's weight and height to find the most appropriate and safe size for them.

ergoPouch Size (same as size)	Pouch Length (cm)	Chest width (cm)	Child Height (cm)
6-12M (0-1y)	74cm	27.5cm	68-84cm
12-24M (1-2y)	84cm	30.5cm	76-92cm
2-3Y	88cm	32cm	92-100cm
4-5Y	98cm	35cm	108-115cm
6-8Y	110cm	38cm	120-130cm
8-10Y	120cm	40cm	130-140cm
10-12Y	130cm	42cm	140-150cm

ergoPouch Size (same as size)	Pouch Length (inch)	Chest width (inch)	Child Height (inch)
6-12M (0-1y)	29.1"	10.8"	26.8 - 33.1"
12-24M (1-2y)	33.1"	12"	29.9 - 36.2"
2-3Y	34.6"	12.6"	36.2 - 39.4"
4-5Y	38.6"	13.8"	42.5 - 45.3"
6-8Y	43.3"	15"	47.2 - 51.2"
8-10Y	47.2"	15.7"	51.2 - 55.1"
10-12Y	51.2"	16.5"	55.1 - 59.1"

The Sleep Onesie should be fitted around the neck to avoid your child slipping through. 2.5 TOG and 3.5 TOG Sleep Onesies should not be used in a 5-point harness or car seat for safety reasons.

See full size guide for all products

Product variants

Free delivery on orders over £65
Estimated dispatch: 12 September 2026
30-day returns and exchanges