Short answer: If sex only hurts in certain positions, two common causes of pain during sex are worth checking first: the angle of her hips and how hard her joints work to hold her there. The WildNightX Pillow keeps a steady 27° in 15+ positions, but see a doctor if pain is sharp, new, or in every position.
What spine researchers learned about positions and pain
"What we know now is that sex positions that are suitable for one type of back pain are not appropriate for another kind of pain"
Natalie Sidorkewicz, a PhD candidate in Waterloo's Faculty of Applied Health Sciences who led the study, speaking to University of Waterloo News
Lying face to face is fine. Slow. Close. Easy.
Then you try her favorite. The one that used to be the one. A minute in, she shifts. Then she winces. "It's fine," she says, and you both know it isn't.
The next morning she's rubbing her hip. So that position quietly goes on the "maybe never" list. Then another one does.
One person wrote in a pillow review that "our favorite position was wreaking havoc on my hips." Plenty of couples know exactly what that means.
Professor Stuart McGill, of Waterloo's Faculty of Applied Health Sciences, has seen where this road leads: "Many couples will remain celibate because one night of love-making can lead to months of back agony."
Here's the clue most couples miss. If it only hurts in some positions, the pain is following something that changes when you switch.
Two things change every time: the angle of her hips, and how much work her hips, back, and knees do to hold her there.
(If pain is sharp, new, or shows up in every position, that's a doctor's visit, not a pillow problem.)
In these positions, her knees and lower back carry her weight the whole time. On a soft mattress, her hips also tip to one side, so the angle keeps changing.
That's why it can feel good at first and ache a few minutes later. Her joints are working, not resting.
What helps: lying face down with a firm wedge under her hips and belly. Her body rests on the foam instead of on her knees.
The edge of the bed is almost never the right height. One of you crouches. She slides toward the edge and holds herself in place with her legs.
A height mismatch forces the angle, and a body holding itself still gets tense fast.
What helps: a firm wedge at the edge of the mattress. It raises her hips to a better height and keeps her from sliding.
Side by side sounds like the gentle choice. But on a flat bed, her lower hip sinks while her top hip twists to keep things lined up.
That twist is exactly what shows up as a sore hip the next day.
What helps: a wedge under her lower hip. It levels her hips, so nothing has to twist.
Notice the pattern? In each clue, the same two things go wrong:
You've Been Trapped: Her Favorite Hurts → You Skip It → Fewer Positions → Less Fun → She Starts to Think Her Body Is the Problem.
Imagine one firm cushion that sets a steady angle in any position you choose. Under her hips when she lies back. Under her hips and belly when she lies face down. At the edge of the bed. On her side.
No new pile to build each time. Same support, every position.
The WildNightX Pillow gives her hips, back, and knees a break, whichever position you pick:
It's Not Magic, It's One Pillow Instead of a Pile: The WildNightX doesn't treat pain. It just keeps the angle steady and takes the weight off her joints, in whatever position feels right.
Every couple is different, and so is every body. That's why the pillow works in many positions instead of just one.
And to be honest: it isn't medicine. If pain keeps coming back no matter what you try, see a doctor. But if the pain follows certain positions, steady support is a smart thing to try.
Here's what couples who own this pillow say:
"It works great! I love how it put my hips at different angle!"
Sarah H., July 2026
"have had difficulty in most intimate 'Connections'; but ever since we use the [pillow], our Sessions are a more Comfortable!"
Brad B., September 2026
"Using the pillow makes the angle feel natural"
Vince M., July 2026
Stop crossing positions off the list. Stop waking up to a sore hip and a quiet promise to skip that one next time.
Imagine: Trying her favorite again, with her hips held steady and her joints at rest. Laughing instead of wincing. Waking up without the ache.
This is the WildNightX possibility.
Getting your favorite positions back is worth a try. Here's what WildNightX is offering today:
Deals change often, so check the product page for today's price and bundle gifts.
Try it in the positions you've been avoiding and see how her hips, back, and knees feel the next morning.
Every order includes the WildNightX 30-Day Guarantee, the promise printed under the buy button on the product page. Want to talk it over? Contact the WildNightX team within 30 days of delivery and they'll take you through the return policy.
Every position supported. Discreet packaging. Join 27,000+ couples.
TRY WILDNIGHTX RISK-FREEThere are many reasons, and some are medical, so see a doctor if pain is sharp, new, or shows up in every position. If it only hurts in some positions, the pain may be following the angle of her hips and the work her joints do.
Two things that change every time you switch positions: the angle of her hips, and how much her hips, back, and knees work to hold her there. A mattress that sinks and pillows that squash make both worse.
Face down, it goes under her hips and belly so her knees can rest. At the edge of the bed, it raises her hips to a better height. On her side, it goes under her lower hip so nothing has to twist.
No. It isn't medicine. The WildNightX keeps the angle steady and takes the weight off her joints. If pain keeps coming back no matter what you try, see a doctor.
When pain only shows up in certain positions, the angle and the support are worth checking first. Give her a steady 27° base and let her joints rest.
Hit the button below to get $45 off and a free Blindfold, all backed by the WildNightX 30-Day Guarantee.
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