Ikea Afjall Foam Single Mattress
The Ikea Afjall is a simple foam mattress made from 33 kg/m3 polyurethane foam, topped with polyester wadding and a washable quilted cover.
- Washable quilted cover
- Even medium-firm feel
- Dense foam holds its shape
£99
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Ikea Afjall Foam Mattress
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Mattress details
Mattress
Ikea Afjall Foam Mattress
Size
Firmness
Medium Firm
Construction
Foam
Depth (cm)
12
Layers
Layer Details
Standard foam
A single layer of polyurethane foam at 33 kg/m3, which means an even, medium firm feel across the whole surface rather than distinct comfort zones. Polyester wadding sits within the washable quilted cover to add a slightly softer sleeping surface.
Layer details from ikea.com product page, September 2026.
Key benefits
- Slim enough for bunk and cabin beds: At 12cm deep, the UK single sits well below the guard rail on most bunks and mid sleepers, a height many standard mattresses exceed.
- Leaves floor space in a child's room: A 90cm width keeps room free for a desk, wardrobe and toy storage, which matters when the bed is competing for every inch.
- Washable cover suits kids and guests: The quilted cover zips off and goes in the wash, a practical feature in a size that spends its life in children's rooms and spare beds.
- Light enough to move alone: A single slab of foam at this depth is easy for one person to carry upstairs, flip onto a slatted base or shift between rooms.
- Density that should last through childhood: The 33 kg/m3 polyurethane foam is a respectable figure at this price, so it should hold its medium firm shape rather than dipping within a year.
This size suits you if...
You're buying for a child's bed, bunk or mid sleeper where a slim, light mattress is safer and easier to handle, you need a spare room or guest bed that gets occasional rather than nightly use, or you're kitting out a student room or first flat on a tight budget. It also suits compact rooms: allow at least 2.1m x 2.8m of floor space.
Consider another size if...
You're an adult sleeping on it every night, especially at a heavier build, since 12cm of foam over a single sleeper's full weight can feel thin. We'd recommend the UK double instead, which is 45cm wider; allow at least 2.6m x 2.8m for it.
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FAQ's
Is the Ikea Afjall single suitable for a bunk bed?
Yes, and it is one of the better budget options for one. At 12cm deep, the UK single sits comfortably below the guard rail on most bunks, cabin beds and mid sleepers, where deeper mattresses can breach the safety height. Check your frame's stated maximum mattress depth before buying, but 12cm clears almost all of them.
Is the Ikea Afjall UK single ok for an adult to sleep on every night?
For occasional use, yes. For nightly adult use it depends on your weight. The single layer of 33 kg/m3 foam is only 12cm deep, so heavier adults may press through and feel the base beneath. Lighter adults and teens should be fine with its medium firm feel, although anyone used to a deep mattress will find it a little spartan.
Will the Afjall single fit in a small bedroom or box room?
Almost certainly. The UK single is 90cm wide, and we suggest a minimum floor space of 2.1m x 2.8m, which most UK box rooms meet. Its narrow footprint also suits loft conversions where the bed has to tuck under a slope, and its light weight makes getting it up a tight staircase straightforward.
Can you fit two Afjall singles in one guest room?
Often, yes. Two UK singles at 90cm wide each need room for both beds plus a walkway between them, so measure your wall length before committing. It's a flexible setup for guest rooms and siblings sharing, and the slim, light Afjall is easy to reposition when you rearrange. Standard single bedding fits, which keeps costs down across two beds.
Should I buy the Afjall in a UK single or a UK double?
Sleeping alone in a compact room, or buying for a child or a raised frame, the UK single is the sensible choice. If you're an adult who likes space to spread out and the room allows it, the UK double is 45cm wider at the same length; we suggest at least 2.6m x 2.8m of floor space for it.