2.5 TOG

Kids Sleep Onesie 2.5 TOG

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In stock

Colours: Grey Marle


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TOG Guide

2.5 TOG


Perfect for 17-23°C / 62-73°F 

What is a TOG?

What is a TOG?

TOG stands for Thermal Overall Grade and is a unit of measurement for insulation and warmth of sleepwear and bedding. The lower the TOG rating, the lighter the fabric; the higher the rating, the more padded and insulated it is.

Size Guide

Sleep Onesie 

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

ergoPouch size 6-12M 12-24M 2-3Y 4-5Y 6-8Y 8-10Y 10-12Y
Same as size 00-1y 1-2y 2-3y 4-5y 6-8y 8-10y 10-12y
Pouch length (cm) 74cm 84cm 88cm 98cm 110cm 120cm 130cm
Pouch length (inch) 29.1" 33.1" 34.6" 38.6" 43.3" 47.2" 51.2"
Chest width (cm) 27.5cm 30.5cm 32cm 35cm 38cm 40cm 42cm
Chest width (inch) 10.8" 12" 12.6" 13.8" 15" 15.7" 16.5"
Chest height (cm) 68-76cm 76-92cm 92-100cm 108-115cm 120-130cm 130-140cm 140-150cm
Chest height (inch) 26.8"-29.9" 29.9"-36.2" 36.2"-39.4" 42.5"-45.3" 47.2"-51.2" 51.2"-55.1" 55.1"-59.1"

Best For

Best for Kids Onesie

Older kids aged 6-12 years for sleepovers, camping and lounging. May also suit neurodiverse children.


You asked, we delivered. Our popular winter Sleep Onesie is now available in kid sizes up to 12 years ( and adult sizes too!). This TOG-rated onesie can now be worn by the whole family for sleep, movie night, camping, sleepovers, walking the dog - whatever takes your fancy we're here for it all. The new larger sizes are helpful for a preschooler who loves their pouch for sleep and doesn't want to give it up. They can now transition into the kid size sleep onesies with minimal disruptions to their sleep routine. Our kid-size Sleep Onesies have a front zip that ends at the crotch for easing dressing, and pockets for pockets sake (who doesn't like pockets). The Sleep Onesie is made from and filled with GOTS certified organic cotton that is non-toxic and gentle on irritable skin. The breathable, stretchy material allows you to move freely and stay comfortable.

The 2.5 TOG Sleep Onesie will keep your big mini warm in temperatures of 17-22°C / 63-73°F. The TOG rating means you can wear the onesie for Sleep without blankets. If using for camping, it's a great option for your big kid to wear in their sleeping bag as an extra thick pyjama. You can also wear a pair of socks for extra foot warmth on chilly nights.

The Sleep Onesie meets all safety standards in Australia and New Zealand, is approved by the International Hip Dysplasia Institute as hip-friendly for growing hip joints, and reviewed by the Eczema Association of Australasia as a skin-friendly product. All ergoPouch fabrics are dyed with non-toxic water based dyes, and come in trend-driven prints and colours. All our prints are designed in-house.


  • icon GOTS certified organic cotton
  • icon Made & filled with organic cotton
  • icon Breathable Natural Fibres
  • icon Separate legs
  • icon Super Stretchy
  • icon Arms-out sleeping
  • icon 1.0 TOG Sleeves
  • icon Fold-over cuffs
  • icon TOG-rated for warmth
  • icon Zip enclosure
  • icon Four-way zip
  • icon Certified non-toxic
  • icon Skin-friendly
  • icon No blankets needed
  • icon Machine washable

Materials & Care


Body, Sleeves & Lining: 95% Organic Cotton / 5% Elastane
Filling: 100% Organic Cotton


Gentle cold machine wash in mild detergent. Do not soak or bleach. Tumble Dry Low. Moderately Hot Iron. Drycleanable (P).

Fire Hazard Label

As this product is made from organic cotton and is not treated with chemical fire retardants the following white fire label applies.

FIRE HAZARD LABEL according to AS/NZS 1249:2014: CAUTION Keep away from heat and flame.


Size & Safety


Ensure you buy the correct size for your child's weight and length, to prevent the Suit from riding up around your child's face. See our Size Guide for more information.
Do not use a padded 2.5 TOG or 3.5 TOG Sleep Onesie in a 5-point harness.

Read our reviews

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