The close fit is meant to promote warmth. The idea being that if there is little gap between you and the bag, there is less air to keep warm, therefore it is more efficent. However, my personal experience is that close fitting bags make me feel restricted and i sleep hot as well which does not help. I know a lot of people like the Snugpak bag's but i'm not a fan. Anyway, they tend to pack up small and light which you don't need, so i'd look around. Some bargains around, try Ajungilak bag's, they are good and reasonably priced, whats your budget?
