Product Sleep Sheet is an extremely lightweight and roomy sleep sack or sleeping bag liner.These travel sheets are excellent as a warm weather sleeping bag or a rectangular sleeping bag liner. This sheet is breathable and comfortable, which is ideal to bring to hotels, youth hostel, boats, planes, trains, or anywhere else you might travel.Perfect as valentines day for her,mothers day gifts from daughter and son Easy to remove, wash and maintain.Provide a noticeable thermal improvement to your sleeping bag. And there is No Openings at the Bottom for healthy concern. Our sleeping bag liners are made from high quality poly-cotton, making it comfort and soft and even warmer than a standard cotton weave liner. The anti-dirtying treatment keeps sleeping bag fresh, clean thus bad odors, at bay which also helps prolong the life of your liner and sleeping bag; it wont wash out of the liner. Feature Has a large pillow pocket to slide questionable hotel pillows in. It has large opening at the side which makes very easy to get in or out You can simply put it in your bag or any luggage and take it to anywhere ENSURES COMFORTABLE SLEEP ANYWHERE Our sleeping bag for 3 seasons are luxuriously comfortable to sleep in.Adapts to varied temperatures and humidity. Suitable for all four season for your traveling; camping; hiking; backpack; ying; driving tour. WASHING INSTRUCTIONS Machine Wash Cold Hand Wash Do Not Bleach Specification Size:45 x 82.7inch(115 x 210cm) ONLY have one side opening. Size:63 x 82.7inch160 x 210cm) have opening on both sides. PACKAGE WEIGHT: Weight 1: 20oz (573g) Weight 2: 24oz(700g) Shape: Rectangle