The Sealy Harlow Ortho Plus Mattress delves deep to get you the support you’re seeking. Designed with specialised PostureTech Core Support coil springs that respond to pressure and bring you strong back support. Sealy’s smart spring technology gradually gets firmer the longer you lay on it to provide targeted deep-down support. With a firm, orthopaedic feel, this mattress offers blissful spinal alignment. Filled with the cosiest synthetic fibres to provide you with the right amount of relief to your hips and shoulders, without compromising on the firm feel.