Give your child's bedroom a fun pop of color with this twin-sized blue balloon-patterned mattress. Combining a thick foam pad with a built-in bunkie board, it's perfect for use on bunk beds, day beds, and trundles. This twin mattress is a level eight comfort -- perfect for back and stomach sleepers that prefer firmer surfaces. Length: 38.0 Width: 74.0 Height: 5.0