Komfi Unity Comfort Ortho Mattress in a Box
The Komfi Unity Comfort Ortho is a budget boxed mattress in five UK sizes, from small single up to king.
- Firm support for back & front sleepers
- Memory foam that moulds to you
- Removable cover washes in the machine
£155.75
Get the lowest price we've found
If you're weighing up the Komfi Unity Comfort Ortho, the price is the strongest thing going for it: this sits firmly at the budget end of the market, and at that level it's a low-risk option for a spare room or a first flat. Detailed construction and firmness information isn't published in a way that isolates this exact model, so we can't tell you precisely what's inside.
Mattress specifications
Firmness
Firm
Type
Foam
Depth (cm)
Number of Layers
2
Trial Period (nights)
Warranty (years)
Price Range
£155 to £222
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
Assessed from Komfi's product page, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Price is the main draw here. This is genuinely affordable, and the spread of five sizes, including small single and small double, suits box rooms and guest beds where standard sizes don't quite fit. And because detailed specifications for this specific model aren't publicly isolated, you're buying with less information than we'd normally like. If you want a cheap, no-fuss mattress and you're comfortable with that trade-off, it's a reasonable shout.
Key features & layer details
Memory foam
A 3cm memory foam layer designed to react to your body heat and mould to your contours. It gives the firm feel a little cushioning at the surface.
Ecofoam
A 17cm base of Ecofoam, made from 100% recycled foam, designed to give firm yet comfortable support. It does most of the work in holding you up, and it's why the mattress feels firm overall.
Layer details from archerssleepcentre.co.uk and aworldoffurniture.co.uk product pages, October 2026.
Best suited for?
Budget buyers
Sitting firmly at the budget end of the market, it keeps the cost low for anyone who wants a cheap, no-fuss mattress.
Guest rooms
A low-risk choice for a spare room, with five sizes available so you can pick one that fits the bed you already have.
Teenagers
Affordable pricing and a range of sizes, including small single and small double, make it a practical pick for a first bed in a smaller room.
If you have specific support needs, a back condition, or you're a heavier sleeper who needs to know exact firmness and construction before buying, this isn't the one for you: the detail simply isn't published for this individual model. Buyers who want a sleep trial or a clearly stated guarantee should also look elsewhere.
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.
Komfi Unity Comfort Ortho Mattress in a Box
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FAQ's
How much does the Komfi Unity Comfort Ortho cost?
It depends on the size you choose, and the price table on this page shows the current price for each size. It sits at the budget end of the mattress market.
What sizes does the Komfi Unity Comfort Ortho come in?
It's available in five UK sizes: small single, single, small double, double and king. The small single and small double options are handy if you're furnishing a box room or a compact guest bed.
Where can I buy the Komfi Unity Comfort Ortho?
Compare the retailers listed in the price table on this page for the current prices. Check the current listing for delivery details and any returns terms, as these are set by the retailer.
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