High quality double knit fabric treated against bacteria. Thermal fiber roll layer combined with artificial ostrich feather substitute for extra softness on the winter side. Treated cotton layer on the summer side for freshness and breathability. High density peeling foam layer on each side for added comfort and durability. Treated non woven fabric layer on both sides to enhance hygiene and structure. High density soft foam layer on each side for balanced body support. Pure rebonded medical foam layer on the summer side for orthopedic firmness and healthy spine alignment. Pure white felt layer treated against dust mites and bed bugs. Strong felt insulation layer separating the padding layers from the spring system. The spring system is made of a unique rust resistant metal alloy with a high number of interconnected springs designed using German technology to provide perfect body support and handle heavy weights. Inner foam spacers between each spring to prevent friction and unwanted noise. Perimeter foam encasement to protect the user from contact with the spring unit and to reinforce mattress edges.