Chesterfield Extra Firm innerspring Featuring a Cooling Cover that

Featuring a Cooling Cover that combines cooling yarns with Tencel® for a cool to the touch sleep surface

520 MiraCoil® Innerspring

Please note: For a Split King you need 2 TXL adjustable bases

Comfort and support foams are crushed to minimize the initial softening and lock in the comfort to feel like new longer

Mattress Foundations are sold separately

Chesterfield Extra Firm innerspring Featuring a Cooling Cover thatThe Chesterfield Extra Firm is engineered for maximum support, featuring a heavy gauge coil system built to hold its shape and keep your spine aligned for years to come. Beyond its firmness, a premium cooling cover and gel infused memory foam ensure you sleep comfortably through the night. How firm is Extra Firm exactly? If you are looking for a mattress that feels solid and ultra supportive, this is it. On a scale of 1 to 5, this is a true 5. It is