Available 
Bodyshape Vitality Bamboo Memory Mattress
from £189-£289.
£189-£289
Sizes tracked: Single, Small Double, Double, King Size, Super King
Komfi Mattress
Komfi Unity Memory Deluxe Mattress review
Komfi Unity Memory Deluxe Mattress is a budget-friendly medium-to-firm memory foam option with four size choices, rolled-delivery context and a useful trial to check fit.
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Last verified: 2026-08-27
Quick verdict
Komfi Unity Memory Deluxe Mattress looks like a value-led medium to firm option for shoppers who want a straightforward memory foam feel without moving into higher prices. The tracked range runs from £149 to £239 across Single, Small Double, Double and King Size, so it is worth comparing the size-specific price you need before you buy. The 100-night comfort trial and 5-year guarantee add reassurance, but the modest review volume means the star rating should be treated as a clue rather than a strong proof point.
Available sizes and prices
Komfi Unity Memory Deluxe Mattress is listed with 4 size options from £149-£239. The visible sizes include Single, Small Double, Double, King Size, so use the table to compare the option that matches the exact size, colour, format or specification you want. Always confirm the final checkout price, delivery charge and stock status on the retailer page.
Key product details
These are the retailer details worth checking first for Komfi Unity Memory Deluxe Mattress: Brand: Komfi; Type: Mattress; Sizes tracked: Single, Small Double, Double, King Size; Price range: £149-£239. Treat them as a quick fact sheet, then use the retailer page to verify any installation, warranty, delivery or model-number details before buying.
| Brand | Komfi |
|---|---|
| Type | Mattress |
| Sizes tracked | Single, Small Double, Double, King Size |
| Price range | £149-£239 |
| Owner rating signal | 4.5 out of 5 shown; review volume needs checking with the retailer |
| Last checked | 2026-08-27 |
What the product page tells us
MattressOnline lists a memory foam support system with a reflex foam comfort layer, plus a medium to firm firmness rating for the Komfi Unity Memory Deluxe Mattress. The page also shows a 100-night comfort trial, a 5-year guarantee and “handcrafted in the UK,” which are useful shopper checks when comparing it with other budget memory foam mattresses. One practical note from the retailer is that mattress depth can affect bedding, toppers and bed-frame fit, so it is worth confirming the exact depth for your chosen size before checkout.
What the wider context adds
Komfi’s Unity collection is presented as a convenience-led range using Ecofoam made from recycled foam offcuts, and the collection is associated with rolled delivery and compact setup. That makes the Komfi Unity Memory Deluxe Mattress feel especially relevant if you want a lower-priced memory foam mattress that should be easier to handle in a Single, Small Double, Double or King Size format. The verified points are the medium-firm position, the memory foam plus reflex foam construction, the £149 to £239 tracked price range and the 100-night comfort trial; the main things to check are exact depth, delivery format for your size, and how the guarantee applies at checkout.
Buyer trade-offs to compare
The clearest trade-off is feel versus price: if you prefer a softer mattress, this medium to firm model may feel more supportive than you want; if you want something firmer, it may sit in the middle rather than feeling distinctly firm. Construction also matters, because a memory foam support system with a reflex foam comfort layer is a different proposition from a sprung or hybrid mattress in the same budget band. Finally, compare the Single at £149, Small Double at £205, Double at £209 and King Size at £239 alongside the delivery format, because rolled delivery can be easier to manage but the best value still depends on the size and room setup you actually need.
Price and value benchmark
The tracked prices for Komfi Unity Memory Deluxe Mattress run from £149 to £239, with Single at £149, Small Double at £205, Double at £209 and King Size at £239. That puts it in a low entry-price position compared with many comparable mattresses, which is why it stands out for value-focused shoppers, but the final checkout price and any delivery charge still need checking on the retailer page. Because the spread between sizes is fairly narrow at the top end, it is especially worth checking whether the extra room of a larger size justifies the additional spend for your setup.
Specs versus nearby alternatives
Compared with nearby budget options, this Komfi model offers a clear memory foam-first specification rather than a more generic value build. Alternatives such as Bodyshape Value Memory Mattress and Bodyshape Vitality Bamboo Memory Mattress sit in a slightly higher price band, while Romantica Adagio Extra Firm Mattress pushes toward a firmer feel if that is your preference. If you are deciding between them, compare not just the headline price but also the feel, the delivery format, the size range and whether the construction is closer to memory foam comfort or a more supportive sprung-style mattress.
How to read the review evidence
MattressOnline shows a visible 4.5 out of 5 rating with 19 reviews, which is a helpful clue but not a large enough sample to treat as strong proof of long-term satisfaction. That matters because the product page itself gives you more concrete buying information than the review count does: firmness, construction, trial and guarantee are all visible, while long-term durability remains something you should judge cautiously. In short, the rating is worth noting, but it should sit below the product details and price when you compare this mattress against alternatives.
Who it suits
This mattress looks most relevant to value-led buyers who want an everyday medium-firm feel and a familiar memory foam setup from a known retailer like MattressOnline. It may also suit shoppers choosing between common bed sizes, because the range covers Single at £149, Small Double at £205, Double at £209 and King Size at £239, which makes it easier to match to a typical bed frame or guest room. If you want simple setup and a lower starting price than many alternatives, the rolled-delivery context from Komfi’s Unity range adds extra appeal.
Who should avoid it
If you know you prefer a clearly softer mattress, this medium to firm option is probably not the closest match and you may want to compare softer alternatives first. The same applies if you want a much firmer feel, because medium-firm mattresses can sit in a middle ground that some shoppers find less decisive. It is also less suitable for buyers who want very detailed construction transparency around this exact model, or a larger body of customer reviews than the 19 reviews shown on the retailer page before committing to a purchase.
Comfort and support
The feel here is shaped by a memory foam support system with a reflex foam comfort layer, which points to a classic foam-led experience rather than a sprung or hybrid one. For example, the King Size is shown at £239 and the mattress is described by MattressOnline as medium to firm, so shoppers comparing it with softer or firmer alternatives can use that as a practical starting point. In real terms, that usually means comparing how much contouring you want against how much support you prefer, especially if you are choosing between medium-firm, softer or firmer options. Because comfort is personal, the most useful check is whether the medium to firm position matches your sleep-position preference and the feel you normally buy, while also making sure the mattress depth works with your bed frame and bedding.
Value check
On value, the Komfi Unity Memory Deluxe Mattress makes sense if you want a lower starting price, a recognised retailer listing and the reassurance of a 100-night comfort trial and 5-year guarantee. The Single at £149 is the sharpest entry point, while the King Size at £239 remains relatively restrained for a branded memory foam mattress, so the size you choose has a real impact on what you pay. Just make sure you confirm the latest price, stock status, delivery cost and exact trial terms at checkout, because those details can change the real value more than the headline price alone.
Good alternatives to compare
The closest alternatives to compare with Komfi Unity Memory Deluxe Mattress include Bodyshape Vitality Bamboo Memory Mattress, Bodyshape Value Memory Mattress, Emma Original Classic Mattress. Use these cards to check whether a nearby model gives you a better price, a more suitable specification or a clearer match for your space and budget.
Available 
Bodyshape Value Memory Mattress
from £185-£279.
£185-£279
Sizes tracked: Small Single, Single, Small Double, Double, King Size
Available 
Emma Original Classic Mattress
from £257-£457.
£257-£457
Sizes tracked: Single, Small Double, Double, King Size, Super King
Retailer details used
Last checked 2026-08-27. The source list below is included to help you check the details behind the comparison. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.
More mattresses to compare
These related guides and reviews can help you compare nearby options before buying.
Questions about this mattress
Is Komfi Unity Memory Deluxe Mattress worth considering for the price?
It is worth shortlisting if you want a budget-friendly memory foam mattress with a medium to firm feel. The tracked prices from £149 to £239, plus the 100-night comfort trial and 5-year guarantee, make it more compelling than the rating alone, but you should still compare size, delivery cost and exact checkout price.
Which sleeper type is this medium-to-firm mattress most likely to suit?
It is most likely to suit shoppers who prefer a medium-firm feel and want straightforward everyday comfort rather than a very soft or very firm mattress. Because comfort is personal, the best comparison is against the feel you normally choose and the sleep-position fit you expect, not against the review score alone.
Does the price change by size and what should I check at checkout?
Yes — the tracked prices vary by size, from £149 for Single to £239 for King Size, with Small Double at £205 and Double at £209. Check the current checkout price, delivery charge, stock status and whether the trial and guarantee apply to the exact size and purchase route you are using.
How useful is the 4.5-star rating if the review count is only 19?
It is a helpful clue, but not strong proof of long-term satisfaction because the visible review count is modest. Treat the 4.5 out of 5 as supportive context and lean more heavily on the concrete details: medium to firm feel, memory foam support, reflex foam comfort layer, 100-night trial and 5-year guarantee.
Does the mattress arrive rolled and why does that matter for setup?
Komfi’s Unity collection is presented as rolled and compact, which suggests easier handling and simpler setup than a traditionally bulky mattress. That can be useful if you are carrying it upstairs or fitting it into a smaller room, but you should still check the retailer page for the exact delivery format for your chosen size.