Grobag baby sleep bag

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Grobag started the baby sleep bag revolution back in 2000 as a result of Rob and Ouvrielle Holmes’ struggle to get their first son Sam to sleep at night. An Austrian sister-in-law introduced them to baby sleep bags, and after the amazing 12 hour sleep as a result, Grobag was born!

Our founders gave themselves a target of 10 years to get the UK from 0% to 80% baby sleeping bag usage, but managed it in just 5. Over 95% of parents in the UK now use baby sleep bags, making traditional top sheets and blankets a relic of the past. We are very proud to have changed the way that mums and dads put their babies to bed and continue to create products that genuinely make parenting easier.

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What to Wear Guide

Safe and sound

The temperature in the room is shown by the number that illuminates. Do not place this thermometer over a radiator or in direct sunlight. 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.

What to wear

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

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. The Groegg nursery thermometer can give you a quick, at a glance reassurance of the nursery temperature so you can pick the appropriate tog.  As all babies are different we would always recommend checking the back of the neck or chest to check baby is not too hot.

Short-sleeved and long-sleeved cotton body suitsShort-sleeved and long-sleeved cotton body suits
large_clothing_icon_2Long-sleeved cotton pyjama top and bottoms
large_clothing_iconsGrosuit – All-in-one cotton sleep suit
Nursery temperature3.5 tog2.5 tog1.0 tog0.5 tog0.2 tog
Above 27°C (81°F +)
24-7°C (75-81°F)small_icons_12
23°C (74°F)small_icons_1
21°C (69°F)small_icons_2
20°C (68°F)small_icons_2small_icons_5
Under 18°C (65°F)small_icons_4
Under 16°C (61°F)small_icons_4small_icons_3
Under 14°C (57°F)small_icons_3

Which size?

An ideal time to start using a Grobag baby sleep bag is when your baby weighs more than 8.8lbs / 4kg (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 before letting them sleep in a Grobag.

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

Approximate child ageMinimum child weightMaximum child length
0-6 months4kg / 8.8lb68cm / 27"
6-18 months8.1kg / 18lb86cm / 34"
18-36 months11.4kg / 25lb98cm / 39"
3-6 years53.5cm chest116cm / 46"
6-10 years58cm chest140cm / 55"


  • Available in 0.2, 0.5, 1.0, 2.5 and tog warmth ratings.

  • Available in sizes 0-6 months, 6-18 months and 18-36 months.

  • Underarm poppers on 0-6 month size.

  • 100% cotton outer.

  • Zip-click® feature on all sizes.

  • Machine washable and can be tumble dried on low heat (Not Jacquard or Lightweave).

  • Includes FREE Nursery Thermometer in 0-6 and 6-18 month sizes.

  • British Safety Standard approved BS 8510:2009 and Australian Safety Standard approved AS/NZS 1249:2003 (Travel) / AS/NZS 1249:2014 (Side Zip)

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  • All Grobag Baby Sleep Bags can be machine washed at 40°C.

  • 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, keep the zip closed.

  • Wash dark colours separately for the first few washes.

  • To prevent colour run, hang out to dry straight away or tumble dry on a low setting (Please note Jacquard and Lightweave Grobags CANNOT be tumble dried).

  • We also recommend that you wash your Grobag with a detergent that is free from bleaching agents in order to retain the original colours.

  • 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.

Award Winning

We’re thrilled to have won so many Gold Awards for the best nursery product.

The Grobag now has 8 Mother and Baby Gold awards, and with over 3 million Grobags sold so far, you can rest assured you have chosen the UK’s favourite baby sleep bag.

Grobag My Child Excellence Awards Badges 2018_FINAL-37
Grobag My Child Excellence Awards Badges 2018_FINAL-139
Mother & Baby Best Sleeptime Product Gold award for the Grobag in 2014

Need more info?

Visit our FAQs page to find out more.

Grobag FAQs

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