Temperature & Humidity -The density and the compression of the cushion are directly related to the temperature and the humidity of the environment around the foam.
In warmer environments, the cushion will feel softer and in a colder environment, the cushion will be harder.
The longer you sit on the cushion the more time it will have to heat up from your body temperature, and the softer it will get as you sit on it. It will return back to normal after a short amount of time.
Our cushions are made of quality density foam that is designed to last for extensive compressions and decompression without any permanent effects.