comfort spring mattress 1. Pillow top mattress with single thread quilting . 2. ... high density sponge 3,Pocked spring 4,5cm memory foam,PK foam and whith felt for inside 5,Deluxe three ... edge, surface folding wash, memory foam slow rebound effect, let every cell of the body ... make you enjoy your evening. 10)The packing:the first packing is the foam ,the sencond packing is kraft ...