DynastyMattress New Cool Breeze 12-Inch GEL Memory Foam Mattress (FULL XL) 3" GEL Memory Foam: Sleep Cool Technology Foam! 120 day trial! Warranty: 20 years Limited Warranty. Dual 2" State of the Art Cool Airflow Foam, 5" High density foam for ultimate support base! Made with High Quality and durable 4-layer construction! CertiPUR-US certified Luxurious white cover with brown suede on corners, fire barrier, zipper washable cover! 30 years Limited Warranty! 30 years Limited Warranty. Adjustable Base Friendly. Comfort Rating: MEDIUM FIRM!