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Grobag Guide

Choosing a size

An ideal time to start using a Grobag baby sleep bag is when your baby weighs more than 8.8 lbs (0-6 mths size). Your child's head should not be able to pass through the neck hole when the Grobag is fastened; otherwise the Grobag is too big. Remember to check the weight of your child.

Please remember that these are recommendations only as all babies are different.

Approximate child ageMinimum child weightMaximum child length
0-6 months 4kg / 8.8lb 68cm / 27"
6-18 months 8.1kg / 18lb 86cm / 34"
18-36 month 11.4kg / 25lb 98cm / 39"
3-6 years 53.5cm chest 116cm / 46"
6-10 years 58cm chest 140cm / 55”

Choosing a tog

A tog measurement is a European warmth rating: the higher the tog, the warmer the product. Grobag baby sleep bags are available in four tog ratings.

A number of factors determine the tog rating of the baby sleep bag that should be used. These include the number of clothes your baby is wearing, the temperature of their bedroom and your baby's health.

Grobags come in a variety of warmth ratings (togs):
3.5 tog Cold temperatures - for cold room temperatures of 12-15°C (54-59°F)
2.5 tog All year round - for standard room temperatures of 16-20°C (61-68°F)
1.0 tog Summer and daytime naps - warmer weather and in rooms of 21-23°C (69-74°F)
0.5 tog Holiday and heatwaves - hot weather and very warm rooms of 24-27°C (75-81°F)

What to wear

Grobag Baby Sleep Bag is a wearable blanket that will keep your baby at a comfortable temperature all night long. The table below shows our guidance on the correct tog of Grobag and clothing to be used in different room temperatures.

Grobag Baby Sleep Bags are designed to be used instead of blankets and top sheets and you need to regularly check your baby to make sure he or she is not too hot or cold, as all babies are different..

Nursery Temperature3.5 tog2.5 tog1.0 tog0.5 tog
24-7°C
(75-81°F)
      Sleeveless bodysuit
23°C
(74°F)
    Short-sleeved bodysuit  
21°C
(69°F)
    Long-sleeved bodysuit  
20°C
(68°F)
  Long-sleeved bodysuit Short-sleeved bodysuit and pyjama top  
Under
18°C (65°F)
  Gro-suit    
>Under
16°C (61°F)
Gro-suit Gro-suit and sleeveless bodysuit or short-sleeved bodysuit    
Under
14°C (57°F)
Gro-suit and sleeveless bodysuit or short-sleeved bodysuit      

Styling features

Grobags come in a range of styles to suit your needs.

Side Zip

With double poppers on the shoulders, there are also under-arm poppers for when your baby is small. Opens out flat for easy night time nappy changes

Front Zip

Fixed shoulders are great if your child moves around more. Ideal for toddlers.

Travel Grobags

Like normal Grobags but with the extra feature of a two way front zip and a back vent so it can easily be used with a 5 point harness in car seats or pushchairs.

How to wash

All Grobag Baby Sleep Bags can be machine washed at 40°C. They can be hung out to dry or tumble dried on a low setting. As with all cotton goods, we have designed our Grobags to allow for up to 5% shrinkage. If your child has any allergies and you wish to wash your Grobag at 60°C, you should allow for a little more shrinkage. When washing, it is best to keep the zip closed. You can iron your Grobag on a low heat if desired, always keeping the iron away from the zip or covering the zip with a cloth. We recommend that you wash dark colours separately for the first few washes. We also recommend that you wash your Grobag with a detergent that is free from bleaching agents in order to retain the original colours.