StarMatt Mattress Replacement System® combines the high-end benefits of multi-celled air technology with a custom form mattress. Underneath the 4" air cells, the mattress features a 3.5" thick layer of therapeutic foam to add patient lift and prevent bottoming out. The mattress system has an overall thickness of 7", with four adjustable air sections that fit within the mattress perimeter. Having the air sections slightly narrower in width, side bolsters are added, allowing increased safety and easing patient transfers.