DynastyMattress 10-inch CoolBreeze Memory Foam Gel Mattress-Twin Size 2.5" 4lb HD Gel Open Cell Memory Foam: Sleep Cool Technology Foam! 2" + 2" Cool Airflow, 3.5" foam for ultimate support base! Feel: Medium Firm Made with High Quality and durable 4-layer construction! Compare to the GENIUS at a fraction of the cost Luxurious white cover with brown suede, fire barrier, zipper washable cover CertiPUR-US Certified!