It supports your spine and provides a comfortable sleep with the Open Cell Visco Sponge and Smart Spring system used extensively in the mattress. In this way, you can rest and start your day with Vi-Therapie. Open-cell structure of Visco material keeps body temperature in balance by providing effective air circulation. Outer surface covered with knitted fabric offers a natural and healthy sleep environment. Open-cell Visco Sponge offers a relaxing effect with its body-hugging harmony. It is the right choice for those who love medium hard beds.