Camping or travelling to nature uses sleeping bad to replace portable mattress. This stuff is easily rolled or folded then put on top of traveling bag. You pick several products from various manufacturer and one of recommended in this stuff is texsport fleece sleeping bag. Strong and firm material prevent water, dust, dirt, insect, and wind to penetrate this bag. You can enjoy sleep inside and feel fresh in the morning. Size is regular and everyone can use it. For specific size, you can pick big or double mode. Another benefit is lightweight and can be carried anywhere you go.