A sleep system includes a pair of riser members spaced apart by a predetermined distance. A rigid connective member between the riser members may provide this spacing. A flexible sheet extends between the riser members and may be secured to the riser members by respective clamps that hold the ends of the sheet to the respective riser members. A flexible load-bearing member, such as a sleeve that encloses one or more cushion elements, may be situated atop the flexible sheet to provide support to the user's head and neck at a height selectable by the user adjusting one of, or both of, the clamps on the riser members.