Sleeping bags are useful and highly-functional things, all travelers have them and love the bags so much. As you could quickly see, here is a cool collection of 9 Cool and Unusual sleeping Bag designs that will do more than just warm your body, for they will also be a lot of fun. We have to notify you, some of those sleeping bags are not really suitable for outdoor events. However, you can’t deny these are pretty fun designs which make you want to use them even you are at home. Hope you enjoy the collection.