The mattress of your dreams is here! Serta's Slumber Oasis Plush Eurotop Mattress provides 8" of cooling, supportive pressure-relief. With breathable CoolTwist Gel Foam that conforms to your body, and cushioning Serta PillowSoft foam, you will be left wondering why you didn't choose this mattress sooner. Grounding all of this are 391 SertaFlex InnerSpring coils that ensure excellent support along your entire body.