For a sore joint that feels pressed against the bed, I'd start with a softer, deeper comfort layer over pocket springs: cushion the joint while keeping your waist and pelvis supported. A surface that's too firm for your body is my usual suspect, however earnestly the showroom assistant recommends something harder. You also need to turn over and get out of bed easily; buying a mattress shouldn't involve signing up for a nightly wrestling session.
A mattress or topper does not treat joint pain or any condition. The NHS guidance on joint pain says to see a GP if it affects your sleep or normal activities, gets worse or keeps coming back, or hasn't improved after two weeks of home care.1 Don't wait for a mattress delivery before seeking that advice.
Cushion the joint while keeping your waist and pelvis supported
A deep comfort layer over a supportive core lets your hip or shoulder sink a little without letting your middle drop too far. That's the combination I look for: latex or foam at the surface, with pocket springs underneath. Firmness alone tells you very little about that combination. The trade does love a single-word answer to a question involving your entire body.
A thin quilt over a firm spring unit gives you little depth to sink into before you feel the harder surface beneath. On your side, much of that pressure falls on your hip and shoulder. A deeper comfort layer spreads the load across more of your body, while the spring core supports your waist and pelvis. Softness at the surface and support underneath can exist in the same mattress.
Your sleeping position changes where you feel that pressure. Use your actual position when choosing, including the one you roll into after your beautifully arranged bedtime pillows end up on the floor.
Your position changes the contact points to check. These are comfort checks, not diagnostic tests.
| Your usual position | Where pressure is concentrated | What to look for |
| Side | Hip and shoulder | Enough surface softness for both to sink a little, with support beneath your waist. |
| Back | Heels, sacrum or base of the spine, and shoulder blades | Cushioning at those contact points without your pelvis sinking much lower than the rest of you. |
| Front | Knees, with your neck turned to one side | A cushioned surface over a supportive core, plus a thin enough pillow to avoid lifting your head further. |
I start with your weight, then adjust for your sleeping position. A heavier person generally needs more resistance underneath; a lighter person needs less before the surface feels hard. With sore joints, soften the comfort layer a step while keeping that underlying support. These are fitting judgements, so there's no useful universal weight cut-off or firmness number to prescribe.
For a sore shoulder or neck, check your pillow before spending mattress money: its height changes how your head sits relative to your shoulder. You can narrow the comfort checks further with our guides to mattresses for hip pain and mattresses for shoulder pain.
Choose a surface you can turn on and a stable edge
You need cushioning you can move on, especially if your joints feel stiff. Latex and springy foam over pocket springs are where I'd look first, because you can change position without waiting for a deep impression to fill back out. Being hugged by a mattress sounds charming until you'd quite like it to let go.
Deep memory foam holds your shape and gives that slow, enveloping feel. Some people love it, but if turning already takes effort, skip the deepest hug. Try rolling from your usual position onto your other side before you buy. You should be able to do it without hauling yourself out of a hollow.
A stable edge matters just as much as the middle. Sit where you normally get out of bed and check whether the edge stays steady beneath you. You need a secure place to sit and push up from. The middle gets all the showroom attention, which seems a bit unfair when the edge is where you actually stand up.
Bed height changes that movement too. Check the combined height of the base and mattress: when you sit on the edge, your feet should rest flat on the floor. A deeper mattress can change a familiar bed's height, so repeat this check if you're replacing a thinner one.
The NHS advises you not to completely stop moving the affected joint. For choosing a bed, the practical connection is straightforward: choose one that lets you turn and get up easily. You don't need to add avoidable effort to those movements.
Choose warmth for comfort and follow the NHS self-care advice
Choose a warmer or cooler mattress according to what feels comfortable to you. Memory foam holds heat, and some people with sore joints like that warmth; if you already throw off the duvet, a deep foam layer is unlikely to be your favourite purchase. I think the industry's enthusiasm for putting "cooling" on everything deserves a little less enthusiasm from your bank card.
For a hot sleeper, I favour pocket springs with breathable fillings; if you want a foam comfort layer, keep heat and ease of movement on your shortlist of checks. A cosy surface is a preference, and you don't have to like it because someone else does. There's no medal for keeping the duvet on.
For home care, the NHS advises you to:
- Try to rest the affected joint if you can.
- Put an ice pack, or a bag of frozen peas, wrapped in a towel on the painful area for up to 20 minutes every 2 to 3 hours.
- Speak to a pharmacist or GP about which painkiller to take.
- Try to lose weight if you're overweight.
- Eat a healthy, balanced diet and exercise regularly.
- Not completely stop moving the affected joint.
- Not smoke.
Keep those NHS instructions separate from your preference for a warm bed. If you have diagnosed arthritis, our mattresses for arthritis guide covers choosing for comfort and easy movement.
Test pressure, turning and getting up before you buy
Lie in your normal sleeping position for a full ten minutes, then turn over and sit up: those checks tell you more than pressing the mattress with your hand. Unless you usually sleep balanced on one palm, that familiar showroom move isn't terribly useful. Notice which joints seem to carry most of your weight and whether you can settle without repeatedly shifting away from a hard contact point.
Compare a hybrid with a deep comfort layer against the firmer bed you were considering. A hybrid combines springs with foam or latex; the useful part is how those layers feel together beneath you. Ignore matching firmness words across different brands, because their scales aren't interchangeable. Apparently agreeing what "medium" means was too much to ask.
A soft topper is the cheaper comfort experiment if your existing mattress is sound but too firm. It adds cushioning at the surface without replacing the support beneath it. Check for a dip first: a topper follows a sag and cannot repair it. Honestly, I think spending money on another layer over a hole is a bloody frustrating way to discover you needed a different mattress.
Give yourself room to adapt during the first fortnight, but keep a short note of what you notice. Record where you feel pressure and whether turning or getting up is easier. The first few nights are a poor basis for judging the final feel, especially if you've changed construction as well as firmness.
Read the returns terms before ordering. Check whether you can get a refund or only an exchange, what condition the mattress must be in, and whether collection costs anything. A comfortable showroom visit doesn't tell you how a whole night will feel, so the practical route back matters.
The settling-in period is no reason to postpone medical advice. Follow the NHS GP criteria for ongoing symptoms, seek urgent GP or NHS 111 help for a swollen, hot joint or joint pain with feeling unwell, and use A&E or 999 for its emergency signs, including being unable to walk or put weight on a joint.
Avoid buying extra firmness because a joint hurts
Don't automatically buy a harder bed for sore joints: extra pressure at the surface is precisely what you're trying to avoid. I have very little patience for "orthopaedic" as a shopping shortcut. The word is unregulated, and a serious-looking label is remarkably easy to print.
- A firm or "orthopaedic" mattress bought solely because a joint hurts. A surface that's too hard for your body presses more firmly against the contact points.
- Deep memory foam when you struggle to turn. Its slow return from your body impression can make changing position harder.
- A firm topper for a sore hip or shoulder. You need cushioning at the contact point; adding another hard surface defeats that aim.
- Ignoring a hot, swollen joint or one that won't take weight. These fall within the NHS urgent and emergency advice.
- Rejecting a new mattress after the first three nights. Early unfamiliarity can change during adaptation, although symptoms that meet the NHS criteria need medical attention.
When joint pain needs a GP, not a mattress
Some joint pain needs medical assessment rather than a different bed. NHS guidance on joint pain says to see a GP if joint pain is stopping you doing normal activities or affecting your sleep, if the pain or swelling is getting worse or keeps coming back, if the pain has not improved after treating it at home for 2 weeks, if your joints are stiff for more than 30 minutes after waking up, or if your child has joint problems.
Ask for an urgent GP appointment or get help from NHS 111 if you have joint pain and the skin around it is swollen and feels hot, or if you have joint pain and feel generally unwell, have a high temperature or feel hot, cold or shivery.
Go to A&E or call 999 if you have very bad joint pain after a fall or injury, you're unable to walk or put weight on a joint, your joint has moved out of place, or you have any tingling or you have no feeling in the area around the joint after an injury.