Grobag sleep sacs from the Gro Company.
What tog is right for your baby?
3.5 tog - For cold winter temperatures of 12-15°C
2.5 tog - All Year Round for standard room temperatures of 16-20°C
1.0 tog - Summer & daytime naps in rooms of 21-23°C
0.5 tog - Holidays and hot days of room temperature is 24-27°C
What size Grobag Baby Sleep Bag should I buy?
0-6 month - is suitable from birth if your baby weighs 8.8lbs or more or from when your baby reaches this weight. It will last until your baby is 6 months old and may well last longer.
6-18 month - is suitable from when your baby is 18lb and is generously sized so may easily last until your baby is between 18 and 24 months.
18-36 month - is suitable from when your toddler weighs 25lb and many toddlers are still wearing their Grobags well after the age of 3.