Topnaca Naturehike Comfortable Cotton Sleeping Bag Liner Travel Sheet Sleep Sack Lightweight Warm Roomy for Camping, Travel, Youth Hostel, Picnic 100% Cotton Imported Portable, lightweight, soft and breathable; easy for use Simple design style. Pocket for pillow insert 100% cotton sleeping bag liner, very comfortable It can be used in both hot and cold weather. Protect yourself from bed bugs It is suitable for travel,outdoor hiking and camping, business trip