Sealy Alston Advantage Mattress
Mattress
Sealy Alston Advantage Mattress
Size
Firmness
Construction
Depth (cm)
Layers
Layer Details
- Fits where nothing bigger will: At 90cm wide, this size leaves room for a desk, wardrobe and toy storage in a child's bedroom without the bed dominating the floor.
- Two can fit in one room: Siblings sharing, or a guest room set up with two beds, can take a pair of UK singles with a walkway between them.
- A sensible spare room choice: In a room that doubles as an office, the UK single keeps the workspace usable while still giving overnight guests a full-length bed.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked and affordable bedding of any UK size.
- Sealy at the entry point: This is the smallest size in the Alston Advantage range, so it's the least expensive way into a long-established brand's mattress.
This size suits you if...
You're buying for a child's or teenager's room where the bed shares floor space with a desk and storage, you're kitting out a spare room or study that occasionally hosts guests, or you're a solo adult in a compact bedroom, a loft conversion or a first flat where a 90cm footprint is all that sensibly fits.
Consider another size if...
You're an adult who shares the bed, or a restless solo sleeper who'd feel hemmed in at 90cm wide. We'd recommend the UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m of floor space for it.
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Is the Sealy Alston Advantage single big enough for an adult?
For one adult, yes, provided you sleep fairly still. At 90 x 190cm it's the standard UK one-person size, so a settled solo sleeper will be fine, although anyone over about 6ft 3in or who spreads out at night may feel restricted. Sharers should look at the UK double or UK king pages instead.
Will the Sealy Alston Advantage single fit a bunk or mid sleeper frame?
The 90 x 190cm footprint matches standard UK bunk and mid sleeper frames. Depth is the thing to check: raised frames have guard rails with a maximum mattress height, and Sealy doesn't publish a depth for this mattress on the listing we sourced, so confirm it with the retailer before ordering for a raised bed.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space, which covers the bed plus room to walk around and open drawers. That makes the UK single a practical fit for box rooms, loft conversions with a narrow usable strip under the slope, and children's rooms where a desk and wardrobe compete for space.
Can I fit two Sealy Alston Advantage singles in one room?
Often, yes. Two beds at 90cm wide each need noticeably less combined floor space than you might expect, which is why paired singles are common for siblings sharing a room or for guest rooms set up for two visitors. Measure for both beds plus a walkway between them before committing.
Where can I buy the Sealy Alston Advantage in a single?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so it's worth a quick check even if you've looked before, and stock of the UK single specifically can differ from the larger sizes in the range.