Discover Sealy’s range of premium mattresses, featuring spring and coil technologies designed to deliver support, comfort and better sleep quality.
Sealy delivers a wide range of bedding options, to allow you to find the exact bed you need. Each Sealy mattress range features a unique combination of our patented technologies, comfort choice and materials.
Technology: RestSUPPORT™ / Unicased XT
Technology: AlignSupport® / Unicased XT
Technology: AlignSupport® / Unicased XT
Technology: PostureTech® / Unikey
Technology: PostureTech® / Edge Guard
Every Sealy mattress features a high-quality spring system, precision-engineered to provide targeted support across the body. Sealy’s exclusive technologies help maintain comfort, stability and support throughout the night.
RestSUPPORT™ coil
A revolutionary three-stage spring system that provides the balance you need for a deeper, more luxurious sleep.
AlignSupport® coil
An intuitive, two-stage support system that detects your body weight and responds to maintain the body’s natural alignment.
PostureTech® coil
A single-stage support system featuring five coils for enhanced reinforcement. This technology undergoes a dual-tempering process to ensure long-lasting performance and durability.
UniCased®XT
This is our most advanced edge support system, which surrounds the perimeter and base of the mattress. Featuring locks that secure into the innerspring unit and a wider edge, this system ensures superior stability.
UniKey
An edge-support system that surrounds the perimeter of the mattress. It is highly durable and features locks that secure into the spring unit, providing a firm seating edge, greater stability, and maximum utilization of the sleeping surface.
EdgeGuard®
The EdgeGuard® edge support system is a polyethylene beam which is inserted into the spring unit and surrounds the entire mattress perimeter. It gives the mattress a firm seating edge and lasts the life of the mattress.
Understanding mattress sizes helps you choose the right mattress for your sleep needs, number of sleepers and bedroom dimensions.





Sealy conducts ongoing medical research and testing of new components, materials and construction methods in the largest NATA-accredited research and development facility in the southern hemisphere. This provides our foundation for new innovation and unmatched product performance.
All Sealy mattresses are made to order and made by hand with end-to-end attention to detail. Every bed passes through 11 sets of hands, as a minimum. We don’t stock warehouses full of imports — rather, we make each mattress to order with the utmost care and professionalism.
Learn more about mattress sizes, comfort levels and advice on sleep positions to help you choose your perfect Sealy. We will help you find the right mattress to suit your unique sleep needs.
Over five million people choose to sleep on a Sealy.
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