Spa Sensations 5" Twin Memory Foam Youth Mattress: * Moisture barrier treatment protects mattress from spills and wetness * Natural green tea embedded in memory foam * 100 percent polyester terry cover * Heat-sensitive memory foam * Base layer made of breathable HD foam * Twin mattress dimensions: 39" x 75" x 5" * Beds sold separately. See our assortment of beds. * Bed frames sold separately. See our assortment of bed frames. See all mattresses on Walmart.com. Save money. Live better. * Great for platform beds. Requires foundation or box spring with standard bed frames. * Foundations sold separately. See our assortment of foundations.