For a better sleep and back therapy try this contoured Leg Wedge. This foam will help improve circulation and is therapeutically beneficial for relieving hip pain, low back and leg pains. If you are not use to having your legs high or never had a foam leg wedge before this shape is more of a gentle slope and will hold both legs up securely so you can sleep comfortably.
1" of memory foam can be added on top for a softer feeling.