Mummy shaped sleeping bags are the most common style of sleeping bag you'll come across, and if you want to ensure your child is nice and warm during the night, choosing a mummy shaped sleeping bag for your child is a must. Mummy shaped sleeping bags have a tapered shape, which minimises on empty space inside. When sleeping bags have empty space inside, this creates cold spots within the sleeping bag and doesn't provide as good a level of insulation.
Mummy shaped sleeping bags also hug your body & feature hoods for a more cosy feel & added insulation. Another benefit to mummy shaped sleeping bags compared to rectangle shaped bags is that they use less material due to their tapered shape, this makes them more compact when they are packed into their storage stuff sack, so kids can carry them easily!
a very good sleeping sac i do winter swimming and this has been a life saver when we get out to keep us warm as toast handy to remove the feet for walking in top bit of kit 5 stars
