Simmons BeautySleep Flagstaff Plush Twin extra long mattress with low profile foundation Plush Pocketed Coil Coil Count, Twin 465, Full 647, Queen 815, King 1051 1/2" Airfeel foam 1" AirCool foam 1/2" Beautyrest gel foam 2" Comfort foam BeautyEdge support FR fiber 10 year limited warranty