by Quick answer: Morning hip pain is most common in side sleepers. Body weight concentrates on the down hip all night, and the wrong mattress makes it worse: too firm pushes back on the joint, too soft lets the hip drop and tilts the pelvis out of line. A medium to medium-soft mattress, a pillow between the knees, and alternating sides fix most cases. Persistent or worsening pain deserves a doctor's visit.
By the MattressNut editorial team · Chiropractor-reviewed · Updated June 2026
Why Side Sleepers Wake Up With Hip Pain
When you sleep on your side, your full body weight presses down through one hip. Unlike the shoulder, which has a wide, curved socket, the hip sits at the widest point of the body and has very little soft tissue over it. That makes it the first place to feel pressure when the mattress doesn't cushion it properly.
Sleeping on the same side every night compounds the problem. The hip joint and the surrounding bursa (a fluid-filled sac that cushions the joint) stay compressed for six to eight hours with no relief. Over time, even a decent mattress can contribute to a slow, dull ache that greets you the moment you stand up.
Other causes include trochanteric bursitis (inflammation of the bursa over the outer hip), hip osteoarthritis, and pelvic misalignment from a sagging surface. Any of these can be present alongside a mattress problem, which is why the pain doesn't always disappear just by switching beds.
Too Firm vs. Too Soft: Different Problems, Same Result
A mattress that's too firm for your body weight won't let the hip sink in at all. The joint ends up pressing against a surface that pushes straight back, concentrating stress on the greater trochanter (the bony point on the outer hip). That's classic pressure-point pain: sharp, localised, and worst on whichever side you slept on longest.
A mattress that's too soft creates a different problem. The hip sinks too deep, the waist doesn't follow, and the pelvis tilts toward the mattress. That tilt pulls on the hip flexors and the lower back muscles all night. The pain here tends to spread a bit more — dull ache across the hip and lower back rather than a sharp point.
Side sleepers generally do best on a medium to medium-soft mattress. Enough give to let the shoulder and hip settle, enough support to keep the waist and pelvis level. See our full breakdown on whether a mattress can cause hip pain for more on how firmness interacts with body weight.
Fixes That Actually Work
1. Put a Pillow Between Your Knees
This is the single cheapest fix and often the most immediate. A pillow between the knees keeps the top leg from rotating forward and dragging the pelvis into a twist. It stacks the hips so the joint rests in a neutral position rather than torquing all night. Use a firm pillow, not a flat one that compresses by 3 a.m.
2. Test Your Mattress Firmness With a Topper First
Before replacing a mattress, add a 2- to 3-inch memory foam or latex topper. If the pain eases within a week or two, the bed was too firm and extra cushioning was all you needed. If it gets worse, the problem was softness or sagging, and a topper won't solve it. This is a cheap diagnostic that saves people from buying the wrong new mattress.
3. Alternate Sides
If you always sleep on the right side, that hip takes every night of compression. Consciously starting the night on the opposite side doesn't eliminate pressure, but it spreads the load and gives each hip more recovery time.
4. Rotate the Mattress
A worn impression under one hip means that spot has lost most of its cushioning. Rotating the mattress 180 degrees moves you off the worn zone. This buys time but isn't a permanent fix if the cushioning layer has broken down throughout.
5. Replace the Mattress If the Comfort Layer Is Gone
If you can see or feel a body impression deeper than about an inch, or if the mattress is more than eight years old and was mid-range or below, the foam is likely too compressed to cushion the hip regardless of firmness rating. A new mattress that balances pressure relief with support is the real solution at that point.
The Saatva Classic is a strong pick for side sleepers with hip pain. Its cushioned euro pillow-top contours the hip and shoulder while the coil-on-coil core keeps the waist and pelvis supported — so the joint isn't being pushed up or dropping down. The Luxury Firm option works for most side sleepers; heavier sleepers often prefer Plush Soft. Queen starts at $2,229 and comes with a 365-night home trial.
See the Saatva Classic (queen from $2,229) and its 365-night trial →
When to See a Doctor
A new mattress and a knee pillow clear up most sleep-related hip pain within two to four weeks. If the pain doesn't improve, gets worse, or comes with any of the following, make an appointment:
- Pain that persists through the day, not just in the morning
- Swelling, redness, or warmth over the hip joint
- Pain that radiates down the leg
- Limited range of motion when rotating the hip
- Pain that woke you during the night, not just on rising
Those signs point to conditions like bursitis, arthritis, or a labral tear that a mattress change won't fix. A GP, orthopaedic specialist, or physical therapist can diagnose the underlying issue and set a proper treatment plan.
The Bottom Line
Morning hip pain is almost always worse in side sleepers, and the mattress is the first place to look. Too firm means pressure-point pain on the outer hip; too soft means pelvic tilt and a dull ache across the hip and lower back. A pillow between the knees helps immediately. A topper tests whether firmness is the problem before you spend money on a new bed. Replace the mattress if the comfort layer has compressed past recovery. And if nothing improves after a few weeks, see a doctor — the joint itself may need attention.
Related: Can a mattress cause hip pain? · Best side to sleep on · Our full Saatva Classic review
Frequently Asked Questions
Why does my hip hurt after sleeping on my side?
Body weight concentrates through the down hip when you sleep on your side. If the mattress is too firm, the joint bears the full pressure with no cushioning. If it's too soft, the hip drops below the waist line and the pelvis tilts, straining the surrounding muscles and the joint capsule. Both leave the hip in a stressed position for hours.
What type of mattress is best for hip pain?
Side sleepers with hip pain do best on a medium to medium-soft mattress with a substantial comfort layer — enough to let the hip and shoulder sink in while the waist stays supported. Memory foam and hybrid mattresses with a pillow-top tend to perform well. Very firm mattresses and low-profile foam beds with no comfort layer are the most common culprits.
Does sleeping on a too-soft mattress cause hip pain?
Yes. A mattress that's too soft lets the heaviest part of the body — the hips — sink deeper than the waist. That drops the pelvis into a lateral tilt and pulls on the hip flexors and lower back muscles all night. The pain is usually a broader ache across the hip and lower back rather than a sharp point on the outer hip.
Can a pillow between my knees actually help?
It does, and noticeably so for most people. The pillow keeps the top knee from rotating forward, which prevents the pelvis from twisting toward the mattress. Stacking the hips keeps the joint in a neutral position. Use a firm pillow or a purpose-made knee pillow — a thin one will flatten and lose the effect partway through the night.
How do I know if my hip pain is from the mattress or a medical condition?
Mattress-related hip pain is typically worst right after waking and eases within an hour or so of moving around. It usually appears on the side you sleep on most. Pain that persists through the day, radiates down the leg, comes with swelling, or woke you during the night rather than only on rising is more likely to have a medical cause — bursitis, arthritis, or a labral issue — and warrants a doctor's visit.
Is hip pain from sleeping a sign of bursitis?
It can be. Trochanteric bursitis causes pain over the outer hip (the bony prominence you can feel when lying on your side) that often flares overnight because the bursa is compressed for hours. It's common, especially in women over 40. But mattress pressure alone can mimic the same location of pain. If switching sleep positions and improving your mattress doesn't bring relief within a few weeks, get checked — bursitis responds well to targeted treatment.