Priestly Extra Firm is the firmest feel in the Elevate Ultra Collection. Designed to deliver a grounded sleep experience, Priestly combines smart sleep technology with tailored comfort layers to deliver deep, consistent support that adapts to you. Every element is designed to work in harmony, helping the mattress respond precisely to your body’s needs for a more restorative night’s sleep.

Our AlignSupport® springs have been cleverly designed and carefully developed through generations past and present, decades of knowhow, and love for crafting a wonderful nights sleep. AlignSupport® is a sense and response spring system, working in two stages. It starts by sensing your shape as you find your comfortable sleeping position. The springs then respond with deep down, consistent support that you can count on night after night. The entire spring system is also twice tempered, so you can rest easy knowing that your mattress is resilient and built to last day in, day out and throughout its lifetime.

Our patented UniCased® XT edge support provides a feel like to no other, offering a number of sleep benefits. UniCased® XT runs along the outside of the spring unit with keys that lock into place. This prevents any lateral movement and allows you to sleep right up to the very edge. The coil-inspired air channels provide a more responsive feel and offer added breathability. It also creates a secure seating edge, perfect for putting your slippers on and our personal favourite, making it easier to hop into bed.

And UniCased® XT is not the only one with air channels, BasePlank is engineered to allow air to move throughout the body of the mattress whilst providing structure to the mattress that withstands the test of time.

Priestly comfort layers are built for firmness and breathability The MemorySense® ComfortCore® offers pressure relief to the heaviest parts of your body. Positioned in the centre third of the mattress, the ComfortCore® is designed to target your hips and lower back to create a personalised level of pressure relief. Combined with a gel-infused foam layer, the Priestly Extra Firm works hard to provide you with a tailored level of comfort that is long-lasting. Our Gel foam is naturally breathable to keep you comfortable and cool during your midday snooze, cat nap or full night’s rest. Complete with layers of Sealy Extra Firm foam, the mattress is perfect for those who prefer an extra firm, robust feel.

Finished with a beautifully crafted quilted top and wrapped in a luxurious, soft-touch fabric for added comfort and elegance. Priestly is woven with SmarTex® to regulate temperature and ProShield® to protect against allergens, ensuring a cooler, cleaner night’s sleep. Four vertical handles offer ease of movement, while the streamlined profile adds a sleek, supportive presence to any sleep space.

Handmade in Britain and backed by Sealy’s 7-year guarantee, Priestly Extra Firm is more than a mattress, It’s a foundation for better sleep, built with integrity and designed to last.

At Sealy, it’s our mission to create mattresses that last and that’s why all Sealy Posturepedic mattresses come with a 7 year guarantee. Handmade right here in Britain.