The Starlight Beds Economy Memory Foam Hybrid Mattress is a fantastic entry level hybrid mattress. This mattress is built around the 13.5 gauge German Engineered Open Coil spring unit. Surrounding the springs are layers of recycled insulating pads. Above the pad is a polyester comfort layer complimented by a British Manufactured Memory Foam layer. The sleep surface is our in-house quilted wavy Cooltouch fabric designed to maximise your comfort. This is a single-sided mattress meaning no flipping needed.