Premier Sleep with Sealy Posture Premier! The Sealy Posture Premiere Range is a line of premium bonnell spring mattresses designed to give you premier sleeping comfort and support. Proudly Australian-designed and Australian-made, this mattress combines multiple comfort features and advanced mattress technologies for a fantastic and rejuvinating sleep - every night of the year! The Ambassador Plush Mattress from the Sealy Posture Premier range brings together premier support, comfort and value so you get a 5-star sleep without breaking the bank: PostureTech II ® ST Spring Technology gives the mattress durable support all while reducing motion transfer, thanks to its alternating coil technology. Unikey® provides full edge-to-edge support thus enlarging your sleep area and giving a firm seating edge that stabilises the entire support system. Enjoy consistent support even to the edge of your Sealy mattress! Gel Centre® high-density gel-infused comfort layer provides you with customised cushioning so you get the right amount of support and pressure-relief, especially for your lower back. Premium Convoluted Quilt Layer, Deep Super Soft and Cushioning Quilt Layer - these four (4) comfort layers works hand-in-hand to give you a luxuriously plush mattress feel. Premium Sealy Fibre materials elevate the mattress experience as it gives you a mattress that's soft and luxurious to your skin whilst you sleep. Dimensions Width (W) Length (L) Height (H) Single 92cm 188cm 28cm Long Single 92cm 204cm 28cm King Single 107cm 204cm 28cm Double 138cm 188cm 28cm Queen 153cm 204cm 28cm King 183cm 204cm 28cm Premium Mattress Features at a glance Spring Technology： Sealy engineered PostureTech® ST Spring technology provides deep down support. It features six turns for additional conformance and is twice tempered for superior performance and durability. Comfort Layers: High quality foam and comfort layers provide a variety of exceptional comfort choices. Built for comfort performance and durability. Bed Base Technology: PermaGrid® Steel module base adds stability and increased durability. Works with the mattress giving it a longer comfort life. Made in Australia This is an Australian-made product. Sleep soundly in the knowledge that your new mattress by SEALY has been masterfully handcrafted using only premium materials and is backed by 10-year Guarantee from this renowned company. SEALY give you a top-quality mattress with an excellent reputation for a great night's sleep. PLUS Bedworks will offer you an Exclusive Extended 2-year exclusive Guarantee as well!