A sleeping bag is a protective “bag” for a person to sleep in, and functions as a bed in situations where it is impractical to carry around a full bed (e.g. when camping, hiking, hill walking or climbing). While in these days, seems the quick pace of life, most of us have this or that kind of sleeping problem or just don?t have time sleep at home. We just grab every chance we can get to sleep? hence lots of design like office sleeping bag, wearable sleeping bag have been designed and produced. Of course, we also have some hilarious design like the bear sleeping bag.