The Australian made Sealy Posture Mina Firm Mattress - Single brings together proven Sealy coil technology and a modern design influence. Featuring the Sealy engineered 5-turn PostureTech® system, it offers deep-down support, whilst CornerGuard provides stability. Experience superior comfort from quality pressure-relieving layers which help deliver a deep, undisturbed sleep. Designed with HealthShield®, an antimicrobial treatment, it helps maintain a clean and fresh sleep surface every night.