Wake up with a stiff neck or aching shoulder? If you sleep on your side, your pillow may be doing more harm than you think.
Based on 2000+ customer reviews.
Side sleeping is common. Waking up with neck and shoulder pain after it shouldn't be.
Without opening your eyes, you already know the kind of morning it's going to be.
Right shoulder: tight.
Base of skull: dull ache.
Left side of your neck: won't turn all the way without a crack.
You haven't checked your phone. You haven't sat at a laptop. You haven't sat through a commute.
So why can't you turn your head?
Many people chalk their morning pain up to their posture, or "just part of getting older".
But if you sleep on your side and you frequently wake up in the morning in pain, it's probably your pillow.
Your pillow is causing your neck pain.
Not your phone. Not your chair. Not age, stress, or a "bad neck".
Your pillow.
Read this and it will all make sense.
Depending on your sleeping position, your neck needs different levels of support from your pillow. This is scientifically proven.
On your back, your spine sits close to the mattress. Your head needs a low pillow that cradles it gently and keeps your neck straight. One pillow is usually enough for back sleeping. Too high, and your chin is pushed toward your chest.
On your side, your shoulder creates a gap between the mattress and your head. Your neck needs a taller pillow to fill it. Without that support, your spine isn't straight and your head falls downward. That's why one flat pillow often leaves side sleepers waking up with neck pain.
Your shoulder needs somewhere to go, too. That's why it often feels natural to tuck an arm under the pillow. If your shoulder has nowhere to settle, it gets crushed under your body weight and rolled inward. This is what causes arm numbness and morning shoulder pain.
A pillow that's the right height for your back is often too low for your side. A pillow built tall enough for your side can be too high for your back.
Most of us don't stay in one position. We turn from back to side and back again during the night. One flat pillow rarely manages both jobs well, which is why so many people end up folding it, stacking it, or waking up to adjust it.
That's one reason morning stiffness can return even after stretches, Tylenol, or a better desk chair. Your neck may simply not be getting the recovery it needs overnight.
Side sleepers also need a slightly firmer pillow than back sleepers. A pillow that is too soft can create the same problem: it lets your head drop, pulls your neck out of line, and keeps those muscles under tension overnight.
The Original Groove® Pillow is built for that exact problem: your neck needs different support on your back and on your side, and most people move between the two overnight. The design is four specific zones that work together so the pillow has the right shape in both positions.
The Head Cradle is a slightly recessed center with a lower height for when you're on your back. Your head settles in. Your chin stays up. Your neck stays level with the rest of your spine.
The Ergonomic Groove is a contoured rise that fills the natural gap behind your neck and helps keep your spine in neutral alignment when sleeping on your back.
The Side-Sleeper Lateral Raises are the wider, taller flanks of the pillow, for when you turn on your side. Higher than the Ergonomic Groove, because side sleeping needs more support than back sleeping.
The Shoulder Underhang is the deliberate cut-out on each side of the pillow where your shoulder drops in when you lie down. Your shoulder goes into the curve. Your neck stays level instead of bending toward the mattress, and your shoulder isn't getting crushed and rolled under your body weight.
After seven design iterations, we settled on a medium-firm 48D bamboo charcoal memory foam: soft enough to feel comfortable, firm enough to keep your neck supported.
When you're on your back, your head rests in the cradle. When you turn at 2 a.m., your shoulder drops into the curve and your head moves to the taller side-sleeper support area. When you roll back later, the cradle is still there. Instead of one flat surface, each position has its own zone.
Contoured neck-support pillows are not just a marketing idea. They are an evidence-backed category.
A 2021 systematic review and meta-analysis found a strong link between pillow design and neck pain, and that cervical alignment can be affected by pillow shape and height.1
Another review found evidence for contoured pillows with higher sides for side sleepers, a lower middle for back sleepers, appropriate height, and a cooler sleep surface.2
That's why the Groove is built the way it is.
That same principle is why Groove is now recommended by more than 1,000 chiropractors, physical therapists, and other providers across the US and beyond.
"I am a Physio and suffer with C6/7 neck pain. I bought this pillow and my pain reduced from a 9/10 to a 3/10 in two days. It has now gone completely after a couple of weeks. This pillow enables the neck to be in a better position throughout the night instead of being in too much flexion."
There's no shortage of pillow advertising. The useful question is what still holds up after people have slept on it.
There are 12,964 verified reviews on our US store. 4.8 stars average.
We also have 2,268 reviews on Trustpilot, with an average rating of 4.6 out of 5.
Groove has been recognized in guides to the best pillows for neck pain by the Sleep Foundation, Good Housekeeping, Men's Health, Women's Health, and others.
Here's what some customers said.
"I've been suffering with neck ache and headaches for years. I've seen six different osteopaths but it's persisted. I saw a new one and the first thing she did was recommend this pillow. I'm no longer in pain during the night nor do I have pain or headaches."
"I'd been having problems with neck pain waking me at night but no issues at all since buying a Groove pillow. My physiotherapist also uses this pillow."
"I was sceptical at first as I'd tried many different pillows to support my neck injury, but this one gave me a good night's sleep from the start. It does what it says on the tin."
"Having tried many different pillows costing a lot more than 'groove,' we have finally found a pillow that has reduced my wife's arthritic neck pain within days."
"I have been diagnosed with severe cervical spondylosis, and it's the only pillow I can sleep with. Enough said."
You can read thousands more reviews on the product page. It's worth doing before you decide.
Some people take about a week to adjust to the pillow. You have 100 nights to really put it to the test, and if it doesn't work for you, you can get a full refund.
Many customers say they notice the difference after the first night.