1cm pressure reducing material of external interlace may help lie on the bed comfortable and beautifully. Its convenience of hardness and softness equally distributes weight and lessens pains, sleep disorder and rigidity. Such mattress may lead to a high quality space for sleeping and is suitable for any bedstead(particular to multi-angle mobile bedstead). Customers may refer to so many options. Specification: twin: 38*74*8 inch Full: 53*74*8 inch Queen: 60*80*8 inch e-king: 76*80*8 inch c-king: 72*84*8 inch