Z DOUGH Memory Foam + Liquid Z Gel Pillow - Tencel Removable Cover - 5 Year U.S. Warranty - Standard - High Loft Open cell foam promotes air circulation, is naturally hypoallergenic and dust mite resistant Liquid Z Gel captures and distributes heat for better temperature regulation Tencel removable cover with superior moisture-management properties aids in optimal sleeping temperatures Backed by a 5-year U.S. warranty; includes one pillow with cover Standard High Loft measures 25 x 16 x 7