Serenibed Ii Mattress In A BoxThis mattress in a box was made of smooth and soft knitted fabric that helps prevent the growth of microorganisms like germs, dust mites, fungi, and unpleasant odors in your mattress. No matter what size of bed frame you have, you can choose from mattress sizes ranging from single bed, semi double, double and queen mattresses in a box. A mattress in a box is an innovative and revolutionary product that lets you easily take home your new bed.