Is the UltraSoft cushion warmer to wear through the course of a night compared to silicone?

AirTouch F20

Ultrasoft memory foam is a better conductor of heat than silicone. This is due to the permeable nature of the material which allows air to flow through tiny holes in the foam. As air flows through, it disperses the excess heat that is transferred from your skin into the environment. Therefore you may feel that Ultrasoft memory foam is cooler to wear overnight than silicone.