The Posture Pocket Plus Extra 600 Single Mattress exudes luxury with its 275mm high-density foam-encapsulated pocket spring base for our highest support levels, and 30mm layer of high-quality memory foam for comfort. Also available in a mid-density foam Supportive version. Anti-allergenic and resistant to mites, it sports a deliciously soft quilted cover which is zipped and can be easily removed for cleaning purposes. Suitable for extra depth sheets, the Posture Pocket Plus will fit any standard bed frame and is fully compliant with fire regulations and British Standards.