The serenity pocket 1000 has a spring system that is uk manufactured to give a consistent feel of quality the mattress is upholstered with pressure relieving memory foam which not only gives a luxurious feel but also relieves aches and pains and improves circulation the striking fabric cover has been designed to increase air flow through the mattress and regulate sleeping temperature for a deeper more peaceful sleep there are turning handles and brass ventilation vents to ensure that the mat