DHG | Dyna-Form Maximus Static MattressDHG Dyna Form Maximus Static Mattress Advanced Support for Heavier Patients and High Risk Pressure Ulcer Prevention The Dyna Form Maximus Static Mattress is designed to provide optimal support for heavier patients and those at high risk of developing pressure ulcers. Made with high quality Combustion Modified Ether (CME) foam, this mattress prevents bottoming out and offers effective pressure redistribution, ensuring comfort and safety for the user.