A mattress is provided that is configured to be located on a bed frame. The mattress includes a support surface having a head end, a foot end, and spaced apart first and second side portions. The mattress further includes an air bladder coupled to and extending along the first side of the support surface....http://www.google.ca/patents/US6295675?utm_source=gb-gplus-sharePatent US6295675 - Mattress assembly
