Nestin Plush foam is combination of 2 layers. Meet the Dual Personality mattress.It’s a combination of two different material with opposite character. High Density PU foam(bottom layer) Super Soft foam(top layer) Bottom Layer : HD PU(High density polyurethane foam) High weight per cubic foot. It has strong cell structure,which makesmaterial HIGH DURABLE and LONG LASTING. HD foams are SOFT as well as FIRM. Hard enough to give BODY SUPPORT and keeps mattress in original shape. Structural RIGIDITY and LONG LIFE. Can be used as ORTHOPEDIC MATTRESS. Top LAYER : Super Soft foam. Gives luxurious comfort feel that EMBRACE your BODY. The structure INCREASES AIR VENTILATION which keeps sleeper COOL during hot summer. Mattress Feel : soft and hard. dual side usable. Mattress Material : HD PU foam (hard side). Super soft foam (soft side). Mattress Cover : Knitted breathable fabric. Packing : Compressed roll packing. Note : mattress comes in latest compressed roll packing enabling you to carry easily without anyone’s help. once package is opened the mattress regains its original size and shape in few hours.