Levitate is the ultimate in pressure relieving and temperature regulating mattress technology. The highly pressure relieving graphite based visco-elastic material contains our patented phase-change crystals, that work by constantly storing and releasing your body heat to regulate the mattress surface temperature. Graphite is a thermal hyper-conductor and is combined with copper microbeads infused into the material - with both acting as the thermal pathway to move heat to and from the phase change crystals. This enhanced thermal conductivity allows the Levitae material to transfer heat up to seven times faster than gel foams. Naturally hypo-allergenic, anti-microbial and dust mite resistant for an improved nights sleep. This mattress is one-sided and doesnt require turning. You should however rotate the mattress regularly. Please note, the divan base and headboard pictured are not included. This is the Kaymed Levitate Silver 1800 Mattress Only. Removeable zipped top outer panel with Levitate zip pull - wash at 40°C One sided, no turn mattress Naturally hypo-allergenic, anti-microbial and dust mite resistant Mattress Dimensions:Single - W 90cm L 190cm D 29cmDouble - W 135cm L 190cm D 29cmKing - W 150cm L 200cm D 29cmSuper king - W 180cm L 200cm D 29cm.