Having been authorised by the Orthopaedic Advisory Board, the Sealy Aspen Posturepedic Mattress has been designed to provide additional support for you back & shoulders whilst you sleep. The Posture Tech 620 springs built in to the mattress respond to the shape of your body to dispense the weight from the heaviest parts of the body. This, in turn, allows for a relief of pressure points between you & the mattress, meaning your rest is less likely to be disturbed by tossing & turning. The mattress itself is convenient in that it is ‘ No Turn’ & only needs an occasional rotation to help ensure that the mattress maintains its firmness & support levels.