The mattress is made of two foam layers, which differ in terms of their composition and density. The upper layer is made of thermo-sensible memory foam, while the core is made of compact high-elastic foam, which provides for support, protects the mattress from deformations and prevents a too deep immersion of patient at the same time. In spite of its high density, the material maintains its elasticity and proper softness. The mattress liner is made of elastic and washable material, which is breathable and moisture permeable. The liner material prevents fluid penetration, thereby protecting the core, and it also serves as incontinence-proof liner, which, however, is soft to touch. The mattress is 16 cm high and can entirely replace a common mattress. It is suitable for patients with body weight from 50 to 120 kg diagnosed with mild to moderate risk (II stage) of chronic pressure ulcer development.