Kittrich Memory Foam Kidz Twin Mattress, Lavender Exclusive T-lock 4-part support system provides a full 7" of edge to edge comfort Colorful cover is anti-bacterial, allergen resistant, removable and washable 100% visco elastic foam, designed for children to significantly minimize pressure points which cause constant tossing and disturbed sleep patterns Manufacturers 10 year non-prorated limited warranty Meet Federal fire retardant complaint number1633 standards