Sealy Posturepedic Elevate Premier Gel Mattress
Mattress
Sealy Posturepedic Elevate Premier Gel Mattress
Size
Firmness
Firm
Construction
Depth (cm)
27
Layers
6
Layer Details
- Quilted cover. A traditional quilted cover treated with SmarTex and ProShield, which means it helps manage moisture and temperature while offering allergen relief. A sensible top layer if you're prone to sniffles.
- Geltex. A supremely breathable foam with an open-cell structure that reduces overheating. It also has excellent bounce back, so you won't feel stuck in one position.
- MemorySense ComfortCore. A core layer similar to memory foam that moulds around your body. This keeps joints, bones and muscles protected while you sleep.
- Dual firm foam layer. An additional stability layer. It adds to the firm, planted feel of the mattress as a whole.
- AlignSupport Coil Springs. Sealy's Posturepedic spring system, designed to align the spine by sensing and responding to your body weight. The springs are twice tempered, which means they hold their shape and resilience for longer.
- Base plank. A sturdy platform that supplies stable support for all the layers above. It helps avoid the mattress dipping in the middle over time.
Layer details from mattressonline.co.uk product page, September 2026.
- Genuine distance from a fidgety partner: With 90cm each across the 6ft width, movement on the other side happens a long way from you, and the firm AlignSupport springs keep it from travelling.
- Room for the night-time visitors: When a child or a large dog treats your bed as their own, the 180cm width means everyone keeps a workable share rather than someone clinging to an edge.
- Usable right to the sides: UniCased XT edge reinforcement matters more at this size, because a super king only delivers its full width if you can sleep near the perimeter without roll-off.
- Firm support at scale: The base plank and dual firm foam layer resist middle dip, a real consideration on a 180cm span where sag would show sooner.
- Full-length stretch: At 200cm long, 6ft 6in in old money, taller sleepers get the same generous length as a UK king with far more width.
- Handles make a big mattress manageable: A super king is an awkward thing to rotate, so the turning handles are a genuinely useful touch rather than a gimmick here.
This size suits you if...
You share every night and a king no longer feels like enough, particularly if one of you is a restless sleeper and distance matters more than any comfort layer. It also fits families where children wander in at night, or dogs join as routine, and you both like a properly firm feel. Your room should measure at least 3m x 2.9m, with around 3.5m x 3.2m feeling right.
Consider another size if...
Your bedroom is under our suggested 3m x 2.9m minimum, or the bed would dominate the space. We'd recommend the UK king instead: it's 30cm narrower, the same length, and we suggest at least 2.7m x 2.9m for it.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
What room size do I need for the Sealy Elevate Premier Gel in a UK super king?
We suggest a minimum of 3m x 2.9m, and around 3.5m x 3.2m feels right, leaving space to walk both sides and open drawers. Measure with the door swing in mind too. In a loft conversion, the sloping ceiling often decides which wall can take a 180 x 200cm bed, so check head height where you'll actually sit up.
Is the super king Sealy Elevate Premier Gel big enough for co-sleeping with children?
It's the most practical standard size for it. At 180cm wide there's a usable share for a third small body, and the firm, planted feel means their wriggling transfers less than it would on a softer bed. The reinforced edges help too, since one adult usually ends up sleeping close to the side on those nights.
Should I choose the UK king or UK super king in this mattress?
If your room comfortably clears 3m x 2.9m and you share the bed, the UK super king's extra 30cm of width is the difference between adequate and undisturbed. The two are the same length, so it's purely a width and room-size decision. In a room nearer our 2.7m x 2.9m guidance for the UK king, take the UK king.
Is the Sealy Elevate Premier Gel super king hard to move and rotate?
It's a substantial mattress at this size, 180 x 200cm and 27cm deep, so rotating it is a two-person job. The built-in turning handles make gripping it far easier, and it's single-sided, so you only rotate head to foot rather than flipping. Check landing turns and door widths before delivery day; this is the size where tight staircases bite.
Will a restless partner disturb me on this mattress in a super king?
Less than in any smaller size. With 90cm of width each, the sheer distance does most of the work, and the pocket-style AlignSupport springs respond to each body individually rather than tilting the whole surface. The firm dual foam layers keep movement localised, so a partner turning over at 3am registers as a murmur rather than a wave.