The Lucas Park Medium mattress by Stearns and Foster features an adaptive fabric that works with moisture-wicking Tencel™ fibres for improve breathability that softer than silk and cooler than linen, Hybrid technology that allows you to truly experience the indulgent comfort of the PrimaSense Memory Foam and PrimaSense Ultra Memory Foam, Comfort layer to deliver an elevated feel, AirVent system to help prevent heat built-up in your mattress to promote an even cooler, more comfortable deep slumber and the IntelliCoil® Advanced designed to support and cradle you with even more adaptive for every type of sleeper.