The High quality knitted fabric , which is environmental and strong breath-ability, dust resistant, anti-mite function, no static electricity. Safe and health, soft and comfortable, green environmental protection standards.

Foam encasement provides a supportive seating edge and maximizes the mattress's sleeping surface.With foam encased,there's a perimeter of foam blocks around the mattress to crate a sturdy edge that responds along with the coils,so you can sleep all the way to the edge without feeling like you're about to fall off and you can sit comfortable without having it collapse.