iKidz Ocean MattressesSleep soundly knowing your kids do, too. This twin mattress provides the rest they need to navigate the day, from schooltime to playtime. No need to count sheepmemory foam and a support core keep your child comfortable as they drift off. A snuggly soft yet supportive pillow makes for sweet dreams. Comfort level: firm Luxury 4 way hyper stretch knit cover Memory foam Support core Standard pillow included 1 year non prorated warranty Foundation box