Master Massage Home Mattress Top Massage Kit Adjustable Headrest & Face Cushion Family Use Massage Equipment14.7" width x 23" length x 9.6" to 13.5" adjustable height. Works with mattresses measuring from 11” up to 16” deep. Product itself weighs 3.8lbs.Easy to use and Compact adjusts to most mattress sizes, and can be folded for easy storage.3" thick Ultra-soft molded polyurethane is protecte..