Simply Gro Simply Butterflies includes advanced UK design and safety features. Every element has been carefully designed and tested to ensure that it is as safe and comfortable as possible. Features
Fits a 5 point travel harness, 2 way front zip
100% woven cotton
Quick-dry polyester filling on the 2.5 tog (1.0 tog is 100% jersey cotton throughout)
Zip-click® feature on all sizes
Machine washable and can be tumble dried on low heat
Includes FREE Nursery Thermometer in 0-6 and 6-18 month sizes, user guide and safe sleep information
British Standard approved
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 age
Minimum child weight
Maximum child length
4kg / 8.8lb
68cm / 27"
8.1kg / 18lb
86cm / 34"
11.4kg / 25lb
98cm / 39"
116cm / 46"
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):
Cold temperatures - for cold room temperatures of 12-15°C (54-59°F)
All year round - for standard room temperatures of 16-20°C (61-68°F)
Summer and daytime naps - warmer weather and in rooms of 21-23°C (69-74°F)
Holiday and heatwaves - hot weather and very warm rooms of 24-27°C (75-81°F)
Grobags come in a range of styles to suit your needs.
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
Fixed shoulders are great if your child moves around more. Ideal for toddlers.
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.