Channel your focus into pure relaxation for the pathway to perfect sleep with the flex have a pressure-relief memory foam mattress. Topped with a layer of gel-infused memory foam to keep your body climate steady, this firm mattress dissipates body heat while quickly conforming to your weight and position for ultimate comfort and support. Sleep restfully with an open-cell ventilated memory foam bed-in-a-box that relieves pressure points, reduces bounce between two sleepers, and delivers welcome relief from the aches and pains of traditional mattresses. The flex cooling gel mattress is Certi-Pur-us certified by accredited independent testing laboratories, so you can be confident that the memory foam is made without formaldehyde, ozone depleters, mercury, and other heavy metals including PBDEs, Tdcpp or Tcep (”Tris”) flame retardants, and is low on VOC. This memory foam mattress comes vacuum-packed and rolled to fit into an easily portable box that ships directly to your doorstep. It takes 2 to 4 hours for the gel mattress to expand most of the way and a day to expand fully. This memory foam mattress includes a removable stretch knit diamond patterned cover. Use with a box spring or mattress foundation is optional. Slatted bases should be less apart.