The Ken-L-Mattress is comprised of 2 components;
the "Cover" and the "Mattress", sold together.

The Cover: The cover is made of sturdy cotton fabric which is quilted to premium polyester batting. All sides of the cover are actually 2 ply in thickness, making it one of our most durable products, and the cover is zippered on 3 sides for easy removal of the mattress (or filling of your choice which you supply).

The Mattress with Liner: The mattress is made of 4" furniture grade foam, which is covered with a liquid resistant zip-off liner that protects the foam from being soiled. The liner is made of a semi-permeable fabric which allows air to pass from the inside out, (which eliminates the ballooning effect of plastic or vinyl), while resisting liquid from passing from the outside in. It is not "waterproof" but does a good job of protecting the foam from being soiled due to accidents if noticed within a reasonable time frame.