A Travel Sheet is an extremely lightweight and roomy sleep sack or sleeping bag liner. These versatile sheets are excellent as a warm weather sleeping bag or a rectangular sleeping bag liner. Compact and lightweight, Travel Sheets are ideal to bring to hotels, youth hostels, alpine huts, boats, planes, trains, or anywhere else you might travel. Fine yarn and a special weaving technique make our high quality cotton a very lightweight and durable fabric. It is breathable, very comfortable against your skin and creates a natural vapor balance. Cotton is machine washable and colorfast.