Compact mattress, tri-fold thin pocket coil, semi-single, regular length, 7cm thick Tri-fold thin pocket coil Recommended for those who want to fold it for storage Comes with a rubber band for a snug fit Lightweight design that makes it easy for women to carry. Unlike typical tri-fold mattresses, each of the three separate units does not have iron borders, so your sleeping comfort is not compromised. Sinks along the lines of the body Multiple independent coils support the body at multiple points, preventing blood flow from stagnating.