Sealy Oasis Hybrid Geltex Single Mattress
The Sealy Oasis Hybrid Geltex is a soft hybrid mattress, which means you get cushioned comfort layers over 1400 individually pocketed springs.
- Soft feel suits side sleepers
- Geltex helps disperse heat
- Allergy UK Seal of Approval
£979
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Sealy Oasis Hybrid Geltex Mattress
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Mattress details
Mattress
Sealy Oasis Hybrid Geltex Mattress
Size
Firmness
Soft
Construction
Hybrid
Depth (cm)
32
Layers
3
Layer Details
Cover
A soft-touch cover with a smooth, silky feel. It's gentle against the skin from the moment you lie down.
Comfort Fillings
Cushioning layers including Geltex, a gel-infused foam, and Tencel fibres, which are soft and eco-friendly. Together they create the mattress's soft, comfortable feel.
Support System
1400 individually pocketed springs that work independently of one another. This gives you tailored support and pressure relief where your body needs it.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- A gentle surface for growing sleepers: The Soft rating cushions lighter bodies well, which means children and teens sink into the Geltex comfort layer rather than lying on top of a firm slab.
- Leaves room for everything else: At 3ft wide, the single leaves floor space free for a desk, wardrobe or toy storage in a compact bedroom.
- 1400 springs under one sleeper: The full pocket spring count sits beneath a single body, so support and pressure relief are concentrated where you actually lie.
- Check the depth on raised frames: This mattress is 32cm deep, which is generous for a standard frame but may sit above the safety rail on bunks and mid sleepers, so measure first.
- Guest-ready without fuss: Single bedding is cheap and widely stocked, and the hypoallergenic build with the Allergy UK Seal of Approval suits visitors whose sensitivities you don't know in advance.
This size suits you if...
You're buying for one sleeper: a child or teenager who prefers a softer, cushioned feel, a student moving into a first flat where the frame is provided but the mattress isn't, or a spare room that doubles as a study and needs a bed that stays out of the way. It also suits a loft conversion or box room where only a narrow footprint fits.
Consider another size if...
You're an adult who shares the bed, even occasionally, or you simply want space to spread out. We'd recommend the Sealy Oasis Hybrid Geltex in a UK double instead; allow at least 2.6m x 2.8m of floor space for it.
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FAQ's
Will the Sealy Oasis Hybrid Geltex single fit a bunk bed or mid sleeper?
The width is standard at 90 x 190cm, so it matches most UK bunk and mid sleeper frames. The catch is depth: at 32cm this is a tall mattress, and many raised frames specify a maximum so the safety rail still does its job. Check your frame's stated limit before ordering.
What size room do I need for a single Sealy Oasis Hybrid?
We suggest at least 2.1m x 2.8m of floor space. That gives you room to walk alongside the bed and open drawers or a wardrobe. In a child's room the single's 3ft width is what keeps space free for a desk and toy storage, which is a large part of its appeal.
Is the Sealy Oasis Hybrid single big enough for an adult?
For one adult, yes. At 90 x 190cm it's the standard UK one-person size, and the full 1400 pocket springs sit under a single sleeper. Taller adults should note the 190cm length; the UK king version is 10cm longer if you regularly find your feet at the edge.
Is a soft mattress like this suitable for a child's single bed?
Generally yes, once a child is past toddler age. Lighter bodies don't sink far into a Soft mattress, so a child or teen gets cushioning without disappearing into it. The hypoallergenic build and Allergy UK Seal of Approval are useful reassurances for young sleepers too.
How much bigger is the UK double than the UK single?
The UK double is 45cm wider than the UK single, and the two are the same length. That extra width is the difference between a one-person bed and one a couple can share, though for a solo sleeper in a compact room the single usually makes better use of the space.