When it comes to your comfort, discover the Ashley-Sleep’ 8-inch mattress. Its memory foam contours to your body delivering amazing support, pressure relief and comfort. The memory foam layer is supported by a thick layer of firm support foam. This mattress arrives in a box for easy set up. Foundation/box spring available, sold separately. Chime - White - Twin Mattress - 8-inch 37.0"W x 74.0"D x 8.0"H - 30.0 lb Chime - White - Full Mattress - 8-inch 52.0"W x 74.0"D x 8.0"H - 45.0 lb Chime - White - Queen Mattress - 8-inch 59.0"W x 79.0"D x 8.0"H - 49.0 lb Chime - White - King Mattress - 8-inch 75.0"W x 79.0"D x 8.0"H - 59.0 lb