Jay Be Pure Anti-Allergy Sprung Single Mattress
The Jay Be Pure Anti-Allergy Sprung Mattress is a medium-firmness sprung mattress with a 21cm depth.
- Foam-free layers help you sleep cooler
- Plant-based anti-allergy treatment
- 10-year guarantee
£259
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Jay Be Pure Anti-Allergy Sprung Mattress
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Mattress details
Mattress
Jay Be Pure Anti-Allergy Sprung Mattress
Size
Firmness
Medium
Construction
Foam
Depth (cm)
21
Layers
4
Layer Details
Sleep surface
A soft-knitted sleep surface treated with plant-based margosa and linseed oils, which is where the anti-allergy protection comes from. It sits directly against your bedding, so the treatment works where it matters.
Comfort layer
Extra-soft Advance e-Fibre, deep-quilted for gentle cushioning. This gives the initial softness you feel when you first lie down.
Comfort layers
Breathable, 100% foam-free open-structured comfort layers that allow air to circulate freely. If you tend to sleep hot, this is the layer doing the work to keep you cooler.
Support core
A deep sprung core that distributes support evenly across the mattress. This is what keeps your spine aligned rather than letting you sink into a dip.
Layer details from jaybe.com product page, September 2026.
Key benefits
- A 21cm depth that suits raised frames: Bunk beds, cabin beds and mid sleepers usually cap mattress depth for safety rail clearance, and this shallower profile stays within most of those limits.
- Anti-allergy where children sleep: The sleep surface is treated with plant-based margosa and linseed oils, which means allergy protection sits right against the bedding in a child's room.
- Cooler for teens who run hot: The Advance e-Fibre comfort layers have an open structure that lets air move through, so a teenager's small, warm bedroom is less of a problem.
- Fits a compact footprint: At 90cm wide, it leaves room for a desk, wardrobe and toy storage in a bedroom where the bed can't take over.
- Practical for a spare room: A medium feel with a supportive sprung core suits occasional guests of different builds, and single bedding is the cheapest to keep on hand.
This size suits you if...
You're buying for a child or teenager, especially one with dust or allergy sensitivities, or you need a mattress for a bunk, cabin or mid-sleeper frame where a shallower 21cm profile matters. It also suits a spare room that doubles as an office, or a student moving into halls or a first flat where the frame is provided but the mattress isn't.
Consider another size if...
You're an adult who wants more width to stretch out, or you share the bed. The Jay Be Pure in a UK double gives you 45cm more width at the same length; allow at least 2.6m x 2.8m of floor space for it.
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FAQ's
Will the Jay Be Pure UK single fit a bunk bed or mid sleeper?
In most cases, yes. Raised frames usually limit mattress depth so the safety rail still sits high enough, and at 21cm deep this mattress falls within the limits most bunk and cabin frames set. Check your frame's maximum depth before ordering, as a few budget frames specify shallower mattresses.
Is the Jay Be Pure Anti-Allergy single good for a child's room?
It's a strong match. The 90 x 190cm footprint leaves space for a desk and storage in a smaller bedroom, the plant-based margosa and linseed oil treatment addresses dust allergies where they matter, and the foam-free e-Fibre layers help a warm sleeper. The medium feel suits growing children better than anything very soft.
How much room does the UK single version need?
The mattress itself is 90 x 190cm, and we suggest allowing at least 2.1m x 2.8m of floor space so there's room to get in and out and open drawers or doors. That makes it workable in box rooms, loft conversions with a narrow usable footprint, and studies doubling as guest space.
Is a UK single big enough for an adult guest?
For occasional guests, yes. At 3ft wide it's the standard one-person size, and the sprung core distributes support evenly, so visitors of different builds should be comfortable for a few nights. An adult sleeping on it every night might prefer the extra width of the Jay Be Pure in a UK small double, which is 30cm wider at the same length.
Should I buy the single or small double for a teenager?
If the room allows, the UK small double gives a teenager 30cm more width at the same length, useful as they grow. We suggest at least 2.4m x 2.8m of floor space for the UK small double. In a genuinely compact room, or with a raised frame, the UK single is the safer fit. Compare the retailers listed on this page for current pricing.