There is a daughter of my patient who has visited to Cambodia for volunteer a few times . She is a very lively woman of about 20 years old. I recommended she use a Smile Pillow because I heard that she sleeps on hard places every day. I think the pillow is the best one in the world for sleep on hard places. The pillow became very comfortable for her, and she always carry the pillow to and from Japan. It also has the advantage of being light and easy to carry. Hang in there.