Mummy sleeping bags does not mean that only mummies can use them, it simply refers to the tapered style that gets narrower towards to foot area. The main benefits of mummy shaped sleeping bags is that due to less material being used they tend to be lighter than rectangular shaped sleeping bags and usually more compact when packed away. They have less foot space, but for people hiking, trekking or climbing it is a small price to pay for a small and lighter sleeping bag to lug about! The tapered design also creates a more snug fit which retains heat better and doesn’t lose as much heat as rectangular sleeping bags therefore they will keep you warmer throughout the night. They protect heat loss from the foot area which is more vulnerable to lose heat than almost any other part of the body. You can find a wide variety of colours, designs and brands within this category including kids sleeping bags from Trespass & Highlander as well as adult sleeping bags from Vango, Snugpak & Gelert. Please note; Some people can find mummy shapes slightly restrictive and claustrophobic, so it is more a matter of personal choice!