Sealy Posturetech 620 spring system to help maintain an even weight distribution. Zonal support. Deep fillings for outstanding comfort and support. Hand tufted mattres is for a firmer feel. Single sided mattress - no need to turn, simply rotate regularly. Firm mattress feel. Mattress depth: 22 cm. Single: Width 90, Length 190 cm. Double: Width 135, Length 190 cm. King size: Width 150, Length 200 cm. Super King: Width 183, Length 200 cm. SEALY