Best orthopaedic mattresses
Orthopaedic is not a regulated term, so any manufacturer can apply it to any mattress, and many apply it to anything moderately hard.
I earn a commission if you buy through some links on this page. It never changes what I recommend, and I publish negative verdicts on brands I earn from. Editorial independence.
Start here
Orthopaedic is not protected in UK mattress retail. There is no standard, no certifying body and no test a mattress has to pass. A manufacturer can print it on anything.
What it should mean is a support structure that holds the spine in neutral alignment under load. That requires two things together:
Enough firmness that the heaviest parts of you do not sink disproportionately, and enough spring count that different regions can still respond independently.
Firmness alone gives you a plank. Spring count alone gives you a hammock. Most mattresses carrying the word have the first and not the second.
The picks
The pick, if you want one answer
Rem-Fit 4000 Ortho Elite Hybrid Mattress, 7.6 / 10. Firm with enough spring count that regions still respond independently, which is the combination the word is supposed to describe.
| Product | Best for | From | Score |
|---|---|---|---|
| Rem-Fit 4000 Ortho Elite Hybrid Mattress | Best overall | Mid range | 7.6 / 10 |
| Silentnight Sofia 1200 Mirapocket | Best zoned support | Mid range | 7.2 / 10 |
| Mlily Premier 2000 Ortho | Best value | Budget to mid | 7.4 / 10 |
| Otty Extra Firm Hybrid Mattress | Best for heavier sleepers | Around £600 | 8.0 / 10 |
Rem-Fit 4000 Ortho Elite Hybrid Mattress: Best overall
Mid range · 7.6 / 10
Nine out of ten for support here, the highest on the site. It has both halves: a genuinely firm build and enough springs that the mattress still responds region by region rather than as one surface.
Buy it if
You need genuine firm support with real structure beneath it.
Do not buy it if
You are a lighter side sleeper. Firm compresses the shoulder.
Read the full Rem-Fit 4000 Ortho Elite Hybrid Mattress review
Silentnight Sofia 1200 Mirapocket: Best zoned support
Mid range · 7.2 / 10
Zoning is the closest thing in this market to what orthopaedic is supposed to mean. Varying spring gauge along the mattress, firmer under the lumbar and more giving under shoulder and hip, lets one mattress hold your waist up while your shoulder sinks. A uniform mattress cannot do both, however firm it is.
The 60 night comfort exchange buying direct matters here, because people buying for alignment frequently misjudge firmness.
Buy it if
You want alignment addressed structurally rather than by firmness alone.
Do not buy it if
You are over about sixteen stone.
Read the full Silentnight Sofia 1200 Mirapocket review
Mlily Premier 2000 Ortho: Best value
Budget to mid · 7.4 / 10
Firm at 2,000 springs, which is the right pairing rather than a compromise. Two thousand is the point where every spring is still doing meaningful work and none has been thinned to make room for the next.
Buy it if
You want firm support at a sensible price and you are of average or heavier build.
Do not buy it if
You want fine contouring.
Read the full Mlily Premier 2000 Ortho review
Otty Extra Firm Hybrid Mattress: Best for heavier sleepers
Around £600 · 8.0 / 10
A 16 centimetre spring core with an extra firm build and reinforced side panels, which most mattresses carrying the orthopaedic label do not have. Edge support is rarely specified and it is the first part of a mattress to fail.
Buy it if
You are over about fifteen stone, or you sit on the edge of the bed to dress.
Do not buy it if
You want any surface give.
Read the full Otty Extra Firm Hybrid Mattress review
What to ask instead of looking for the word
Four questions, none of which the label answers.
1. How many springs, for my size? Counts are quoted for a king. Between 1,500 and 2,500 is the useful band for firm support; above that, counts rise using thinner wire.
2. Are the springs pocketed or linked? Open coils are joined by wire, so the mattress responds as one surface rather than region by region. That is the opposite of alignment support.
3. What is the firmness rating, and is it zoned? Zoning is the one technology here where the claim and the physics agree.
4. Are the edges reinforced? Where you sit to dress, and where a firm mattress usually gives way first.
If a seller cannot answer those, the word orthopaedic on the label is not adding information.
Firm is not automatically better for your back
This is the overcorrection that sends people to this page in the first place.
| Position | Aim for | Too firm produces |
|---|---|---|
| Side | 4 to 6 | Compressed shoulder, numb arm, hip pain |
| Back | 6 to 8 | Bridging from shoulders to hips, lumbar hollow unsupported |
| Front | 7 to 9 | Least likely to be too firm of the three |
And a stated firmness is not absolute. A mattress compresses until its resistance matches your weight, so under ten stone a rated 7 feels firmer than 7, and over fifteen stone it feels softer and supports less than the number implies.
If a clinician has advised a firm mattress
Take that advice from them rather than from a product name, and bring the specification rather than the marketing to the conversation: depth, spring count, pocketed or linked, firmness rating, zoned or uniform.
A mattress holds your spine in a position for eight hours. It is not a treatment, and no mattress should be bought as one. If pain is severe, persistent or worsening, or comes with numbness, weakness or any change in bladder or bowel control, that belongs with a GP or physiotherapist.
And before spending: check your pillow height, measure your mattress for a dip over 25 millimetres, and measure your slat gaps. All three are free and all three commonly produce pain blamed on the mattress.
What not to buy
Anything sold as orthopaedic without a spring count. The word carries no specification.
An open coil mattress marketed as orthopaedic. Linked springs cannot respond region by region, which is the thing alignment support requires.
The firmest mattress available. Firm without gradation is a plank, and for side sleepers it creates shoulder pain rather than solving back pain.
Anything described as medically approved or therapeutic. Mattresses are bedding.
A firm mattress onto an unmeasured base. Slats over about 7.5 centimetres apart cause sagging and void most guarantees.
Also considered, and why they are not here
A roundup is only as useful as what it leaves out, so here is what was assessed and rejected for this list.
| Product | Why it is not on the list |
|---|---|
| Mlily Premier 1000 Ortho | A sound firm mattress at 1,000 springs. Fine at average build, and there is less headroom than the 2000 for anyone heavier. |
| Mlily Premier 3000 Ortho | Firm at 3,000 springs, which narrows the benefit to motion isolation. Worth it if a partner wakes you, otherwise the 2000 Ortho has stronger springs and costs less. |
| Silentnight Just Sleep | Honest entry pricing, and the spring type needs confirming. Open coil is a sound budget construction and the wrong one for alignment. |
| Ergoflex 5G | Outstanding motion isolation and a company trading since 2006. Foam conforms rather than zoning, so it is not an alignment specification. |
| Inofia Elegant Pro | Depth and a spring core at budget money. Pro describes range position rather than construction, as orthopaedic does. |
How this list is made, and who made it
Independence
No brand pays to appear on this site and no placement is sold. Some links earn a commission if you buy, which never changes a score, an order or a verdict. Several of the lowest scores here are on products that carry commission, and several recommendations carry none.
Who writes this. Kyle Klinkradt has worked in the mattress and bedding industry for over ten years across retail, distribution and brand partnerships, and has handled, sold or assessed products from every major UK bed-in-a-box brand. Every review on this site is written by one person, so the scores mean the same thing from page to page.
What the assessment is. Construction specifications against what they physically do: spring height and where in the mattress it sits, spring count for the size, gauge, whether the base is sprung or foam, foam density where it is published, comfort layer depth and material. Then the commercial terms that decide what you are actually buying: trial against returns policy, guarantee length against the company's UK trading history at Companies House, and the regulatory record.
What it is not. This is not a laboratory. I do not publish pressure-mapping data or claim to have slept eight years on every mattress here, because nobody has and pages that imply otherwise are not telling you the truth. Where a judgement rests on construction rather than long-term use, the review says so.
What gets a product removed. Leaving the UK market, a specification change that makes the review inaccurate, or a corrected fact. Brands that have withdrawn are kept on the site with the score removed rather than quietly deleted, because people still search for them.
See editorial independence, corrections and the author page.
How these were chosen
Every product here has its own review on this site with a score out of 10, and the score is a judgement rather than an average. Nothing appears in a list because it pays more.
A score is against the market, not against its own range. The cheapest mattress in a lineup is usually priced to make the model above it look reasonable, and the flagship of a budget range has risen into a bracket where better brands compete. Both are judged against what else you could buy for the money.
Everything listed can actually be bought in the UK. That is not a given: Casper withdrew in July 2020 and Leesa no longer sells here, and both still appear in current British roundups with affiliate links attached.
I do not pad the list. Where only three or four products genuinely qualify, there are three or four. A list of seven when the category contains four good ones is a list with three bad recommendations in it.
Prices move constantly. Judge the cash price on the day rather than any percentage beside it. See every review on this site or where the real savings are.
Questions people ask
Does orthopaedic mean anything on a mattress?
No. It is not a regulated term in UK mattress retail: there is no standard, no certifying body and no test a mattress has to pass. Any manufacturer can print it on anything.
What should an orthopaedic mattress actually have?
Enough firmness that the heaviest parts of you do not sink disproportionately, and enough spring count that different regions can still respond independently. Firmness alone gives you a plank; spring count alone gives you a hammock.
Is a firm mattress better for back pain?
Not automatically, and over-firming is the most common mistake. Side sleepers need 4 to 6 and too firm compresses the shoulder. Back sleepers need 6 to 8 and too firm bridges the lumbar hollow rather than filling it.
What should I check before buying for back support?
Your pillow height, whether your mattress has a dip over about 25 millimetres, and your slat spacing. All three are free to check and all three commonly cause pain that gets blamed on the mattress.