Sleep soundly with KeaBabies 1-Pack Mavy Protect+ Twin Waterproof Mattress Protector. Available in 75""x39"" and 80""x39"" up to 14"", these toddler bed sheets are crafted for peace of mind. The ultra-soft cotton top keeps your little one cozy, while the 100% waterproof bottom whisks away leaks and messes. Lightweight and non-bulky, it preserves your twin size mattress s natural feel.