This product is basically a king size cotton/poly sheet with the edges sewn together. I had expected it to be easier to enter the pocket, but the pocket is sewn completely from top to bottom. This makes entry and exit quite difficult, especially when you're using a cot. The pillow pocket is quite small and is unable to cover a regular sized pillow. Had I known more about this product I would have just continued using the folded bed sheet that I had already been using. I only paid about $12 for my bed sheet, it's 100% cotton instead of a polyester blend, and it's much easier to use because it isn't sewn shut.

I've used the sleeping bag liner on trips to Africa, and Central- and South America, where I was sleeping in hotels, as well as camping. Pretreating the liner with permethrin provided more protection against insects (including bed bugs). In the third world, the standard of cleanliness of the "best" hotel may leave you happy to have brought the liner along to throw between the sheets. When camping, this helps to keep the inside of my sleeping bag clean, and is easy to wash and dry. Definitely worth the weight and room in my pack.

I've only used it for 2 days of camping but I did like the fact that it is lite weight so I didn't over heat at nite and it does pack small so it will be great for hiking and trekking.