 MEMORY - PRESSURE RELIEF BED Visco Elastic Memory Foam was originally developed by NASA's research centre to relieve pressure build - up experienced by astronauts on lift off. This unique pressure relieving material is used in the Dual Density Memory - Flex range to give the ultimate sleep experience. Healthbeds Dual Density Memory - Flex is constructed from two layers - the initial top soft layer to ease tension and aching muscles also gives this mattress a luxurious relaxing feel. The second higher - density layer conforms to the body shape and reduces pressure build - up, both layers work together to hold the spine in it's natural position, helping to eliminate pain and discomfort to give a deeper and more comfortable sleep.
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