When purchasing a foam or latex mattress, it is important to pay attention to the cell structure of the material. You should see the 'bubbles' or 'holes' in the foam. High-quality material has an open cell structure. An open cell structure provides good ventilation and prevents night sweats. In addition, an open cell structure ensures that the pressure of the body is properly divided. Mattresses of high quality memory foam can adapt well to the body: the air of the hollow cells in which pressure is applied, spreads easily to the surrounding cells.
The open cell structure of foam mattresses allow for high breathability. High quality foam mattresses are also known for their durability. Low quality foam mattresses have problems with cell structure deterioration, leading to the collapse of the mattress. Polyether foam has a closed cell structure, and is therefore less suitable for a mattress. A mattress of polyether foam does not fit well to the body and can be very warm.