SleepSoul Air Mattress
The SleepSoul Air is a budget-friendly boxed mattress built around traditional open coil springs, which means even, familiar support rather than the contouring feel of pocket springs.
- Suits side sleepers & lighter bodies
- Non-slip base stays in place
- 10-year guarantee
£119.64
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Rated Soft/Medium, the SleepSoul Air suits sleepers who like a gentler surface with a bit of bounce. At 21cm deep it's slimmer than many hybrids, so expect a lower-profile feel. It arrives vacuum-packed and expands within 2 to 24 hours. Available in UK Single, Small Double and Double, it comes with a 10-year guarantee, which is reassuring at an affordable starting price.
Mattress specifications
Firmness
Medium Soft
Type
Open Coil Spring
Depth (cm)
21
Number of Layers
4
Trial Period (nights)
Warranty (years)
10
Price Range
£119 to £154
Best Sleeping Position(s)
Side Sleeping
Certifications
Assessed from SleepSoul's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
This is a sensible pick if you want a straightforward, affordable mattress without wading through spec sheets. The Soft/Medium comfort rating suits side sleepers and lighter bodies who find firmer beds create pressure at the shoulder and hip. The 2cm soft foam layer distributes your weight consistently, which means fewer pressure points, while the open coils underneath keep the support even across the surface. A non-slip base stops it shifting on slatted frames, a small touch that matters more than it sounds. Yes, at 21cm it's a slim build, but the 10-year guarantee from SleepSoul gives it credibility that many budget options lack.
Key features & layer details
Top Layer
A luxurious comfort quilting sits on top, which means a soft, cushioned surface the moment you lie down.
Soft Foam
A 2cm layer of soft foam provides deep comfort through consistent weight distribution. In practice, that means your weight settles evenly rather than concentrating at the hips and shoulders.
Springs
Traditional open coil springs provide even support across the whole mattress. Expect a slightly bouncier, more connected feel than pocket springs, so movement transfers a little more between partners.
Non Slip Fabric
An anti-slip base adds stability, keeping the mattress in place on slatted or divan bases.
Layer details from sleepsoul.co.uk product page, September 2026.
Best suited for?
Side sleepers
The Soft/Medium rating and 2cm soft foam layer let your weight settle evenly, which means less pressure building at the shoulder and hip.
Lighter sleepers
Lighter bodies tend to sink into a gentler surface more easily, so the Soft/Medium feel and cushioned quilted top should feel comfortable rather than hard.
Budget buyers
The copy describes a sensible, affordable starting price, and the 10-year guarantee adds reassurance that many budget options lack.
Combination sleepers
Open coil springs give an even, slightly bouncy surface across the whole mattress, which means changing position during the night feels easy.
If you prefer a firm surface, the Soft/Medium rating will likely feel too yielding, particularly for heavier bodies or committed front sleepers. Couples sensitive to a partner's movement may notice more motion transfer from the open coils than pocket springs would give. And there's no King or Super King size listed.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
SleepSoul Air Mattress
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FAQ's
Is the SleepSoul Air mattress soft or firm?
SleepSoul rates it Soft/Medium, so it sits at the gentler end of the scale. That tends to suit side sleepers and lighter people, although anyone who prefers a firm, supportive feel may find it a little too soft.
How long does the SleepSoul Air take to expand?
It arrives vacuum-packed and boxed. SleepSoul says it expands to good condition within 2 hours and reaches its best after 24 hours, so it's usable the same day but ideally left overnight.
Does the SleepSoul Air come with a guarantee?
Yes, SleepSoul offers a 10-year guarantee, which is generous for a mattress with an affordable starting price. No sleep trial is mentioned on the brand's site, so check returns terms with your retailer before buying.
What sizes does the SleepSoul Air come in?
It's available in UK Single, UK Small Double and UK Double. There's no King or Super King option listed, so larger beds will need a different model.
How deep is the SleepSoul Air mattress?
It measures 21cm deep, slimmer than many mid-range mattresses. That keeps standard fitted sheets easy to use, but expect a lower-profile feel than deeper hybrid designs.
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