Independent test · updated October 2026
Derila pillow reviews: I slept on the Derila Ergo pillow for 4 weeks (honest Derila Ergo pillow review)
Updated: October 2026 · Tested for several weeks
A butterfly-shaped ergonomic memory foam pillow that promises a looser neck in the morning and quieter nights. Here is what actually changed in my sleep, what let me down, and what 46,037 customer reviews on Trustpilot say about it.
In short: the Derila Ergo is a proper cervical pillow, well thought out for back and side sleepers. In my case, the morning neck stiffness eased off clearly after about ten nights. Expect three or four nights of getting used to it, a fixed height of roughly 12 cm, and a checkout that pushes the extras a bit too hard. It is not a medical device.
What won me over
- Steady neck support on your back and on your side
- The butterfly shape keeps your head where it should be all night
- Removable cooling cover that goes in the washing machine
- 60 days to send it back, even if you simply change your mind
What might bother you
- A few nights to adjust, especially after a soft feather pillow
- Not great if you sleep mostly on your front
- Height can't be adjusted (about 12 cm)
- You pay the postage if you return it
Contents: why your neck hurts · the Derila Ergo up close · my 4-week test · sleep positions · snoring and sleep apnoea · customer reviews · price and returns · verdict · FAQ
Neck pain in the morning: what poor sleep posture does overnight
If you've typed "Derila pillow reviews" into Google, I'd guess you know the routine. Alarm goes off, your neck is locked, one shoulder feels dead, and there's a dull headache that only lifts after the second cup of tea. That was my morning for the best part of two years. And more often than not, the culprit isn't the mattress. It's the pillow.
Most ordinary pillows, feather or polyester, flatten as the night goes on. Your head sinks, your neck bends, and the muscles between the base of your skull and your shoulders spend eight hours compensating. Each time you turn over you punch the pillow, fold it in half, hunt for the right height. You've slept, technically. You just haven't rested. Poor sleep posture like this is one of the most common reasons people wake up stiff, and it can creep down into the neck and shoulder area, and some people feel it as upper back pain too. Finding the right pillow won't fix everything, but it's the cheapest place to start if you want to sleep better.
An ergonomic pillow starts from a simple idea: keep the head and neck, and the top of the spine, roughly lined up the way they are when you stand, whatever your sleep position. That's what the Derila Ergo pillow is designed to do. The real question is whether it manages it in an ordinary bed, with an ordinary sleeper. That's what I wanted to find out.
The Derila Ergo up close: an ergonomic memory foam pillow with a butterfly design
The Derila Ergo (also sold simply as the Derila Pillow, and called the "Derila butterfly pillow" by plenty of buyers) is a cervical pillow made of high-density memory foam that adapts to the weight and warmth of your head. The brand says the polyurethane foam is CertiPUR-certified, and there's no latex in it. Rather than pushing back like a spring, the foam moulds to the shape of your head and neck and spreads the pressure. The ergonomic design of the Derila Ergo isn't there for looks: each part of the pillow has a job in keeping the neck in line with the rest of your spine.
| Feature | Derila Ergo |
|---|---|
| Size | 54 x 36 cm (official figures) |
| Height | About 12 cm, not adjustable |
| Weight | About 1 kg |
| Filling | High-density memory foam, CertiPUR-certified according to the brand, no latex |
| Cover | Removable and washable, with a cooling-effect fabric |
| Positions claimed | Back, side, front, and people who move around |
| Returns | 60 days from delivery (official site only) |
| Status | A comfort pillow, not a medical device |
The support zones, one by one
The central hollow takes the back of your head when you lie on your back. Your head settles there instead of rolling, and the front edge supports the curve of your neck.
The front and back wings come into play on your side. They fill the gap between ear and shoulder so your neck doesn't drop towards the mattress.
The side cut-outs leave room for your shoulder and arm. This was the detail I liked most. I often sleep with an arm tucked under the pillow, and I stopped waking up with pins and needles in my hand.
The small central rest supports your chin if you roll part-way onto your front, and leaves a space for your ear. Handy if you wear earplugs or sleep with earbuds in.
The cover and the heat question
The pillow comes with a removable cover, so you can wash it as often as you like, and regular washing adds to the life of your pillow.
Memory foam has a reputation for running hot. Derila wraps this one in a cover that feels cool to the touch and uses a foam meant to let air through. In my bedroom, kept at about 18 degrees, my head never got sweaty. On one muggy night in late August the cool feeling faded after an hour or so. Better than a basic memory foam block, then, but don't expect air conditioning.
My Derila Ergo review, night by night: using the Derila pillow at home
I swapped my old feather pillow for the Derila Ergo for four weeks. I'm mainly a left-side sleeper who tends to end up on her back by morning. Here's the diary, warts and all.
Nights 1 to 3: the doubtful bit
The first night it felt firm and a little high. The new foam had a faint smell, which went after a day by an open window. On night two I woke around 3am feeling as if my head was being held too tightly. That's normal: your body is used to a pillow that collapses. By night three I'd worked out the trick. Rest your neck on the front edge and let your head drop into the hollow, instead of plonking your head in the middle as you would on a standard pillow.
Nights 4 to 10: the neck starts to go quiet
By the end of the first week I'd stopped fidgeting for a comfortable spot. I'd move from side to back without fully waking. The morning stiffness, which used to hang about until mid-morning, had almost gone on some days, and I managed to sleep through the night more often, with longer stretches of uninterrupted sleep. Not every day, mind. After a nine-hour stint at the laptop, some tension came back.
Weeks 3 and 4: what stuck
What impressed me over time was how consistent it is. The foam doesn't sag during the night, so the support at 7am is the same as when you switch off the light. My husband, who snores when he lies on his back, borrowed it for three nights. He stayed on his side for longer and the bedroom felt quieter to me. That's an observation, not proof, and I come back to it below.
My own verdict on the test: less stiffness in the morning, fewer wake-ups to rearrange myself, and more restful sleep most nights. The first few nights take patience. If you give up after two, you won't know whether it suits you.
Best pillow for which sleeper? Side sleeper, back sleeper or front
The brand says the pillow works whatever your position. In practice it's a bit more nuanced.
| Position | Our view | How to place it |
|---|---|---|
| On your back | Very good | Head in the central hollow, neck on the front edge |
| On your side | Very good | Head on a wing, shoulder in the side cut-out |
| Restless sleeper | Good | The shape guides your head when you turn |
| On your front | So-so | Use the chin rest; at 12 cm many will find it too high |
Your build matters too. With a fixed height of about 12 cm, the Derila Ergo suits side sleepers of average to broad build: it fills the space between ear and shoulder and keeps the head level with the neck. If you're very slight and sleep on your front, it may tip your head up too much. The NHS advice on neck pain mentions a low, firm pillow and keeping your head at the same height as the rest of your body, and it suggests not sleeping on your front, so front sleepers are better off with something flatter. Choosing the right pillow is mostly about your own shoulders and habits, not about a slogan. For step-by-step set-up, I've written a separate guide: how to use the Derila pillow in each sleep position.
Snoring and sleep apnea: what the Derila pillow can and can't do
Lots of user reviews mention less snoring. Some of the reviews shown on the brand's own site go further and talk about nights being transformed, which I take with a pinch of salt. Still, there's a plain mechanical reason it can help some people: when the head and neck stay in line, and when you spend more of the night on your side, the airway tends to be less squashed. So a pillow designed to keep you aligned may help reduce snoring that's linked to lying on your back, in some sleepers.
Sleep apnoea: let's be clear. The Derila Ergo is not a medical device and it doesn't treat obstructive sleep apnoea (OSA, written obstructive sleep apnea in American sources), which is a sleep disorder that needs a proper diagnosis. If you've been diagnosed, don't swap your CPAP (continuous positive airway pressure) machine or any other treatment for a pillow without speaking to your GP or sleep clinic first. Sleep apnea symptoms such as stopping breathing in your sleep, gasping or choking noises, or heavy fatigue during the day are a reason to see your GP, not to buy a pillow.
I've written a whole page on this, covering what a contour pillow can realistically do for snoring, CPAP users and sleep apnoea symptoms: the Derila pillow for sleep apnea and snoring.
Derila pillow reviews from customers: Trustpilot, complaints and Reddit
My test covers one neck: mine. So I read what buyers say. On Trustpilot, the Derila page shows a score of 4.1/5 from 46,037 reviews (checked on 5 October 2026), with 23,781 of them left in the past 12 months.
| Rating | Share of reviews |
|---|---|
| 5 stars | 48% |
| 4 stars | 29% |
| 3 stars | 7% |
| 2 stars | 3% |
| 1 star | 13% |
What comes up in the positive reviews: comfort, a less stiff neck, calmer nights, and a fair few people who say they breathe more easily or snore less. Several describe improved sleep quality within the first week or two.
What comes up in the complaints: first and foremost, the checkout. Plenty of customers feel the site pushes too hard to add pillowcases and other extras. Then there are order or delivery problems for a minority, and people who never got used to the firmness. The company replies to 100% of negative reviews, which is a decent sign for customer service. I go through the complaints one by one in a separate article: are Derila pillows legit?
On Reddit and forums, the question that keeps coming up is simple: "does it actually work, or is it just marketing?" The most honest answer I read matches mine. It's a good cervical pillow, not a miracle, and you have to give it a few nights.
What about consumer bodies? Which? tests pillows for comfort, neck support and coolness, but we found no published Which? test of the Derila (October 2026). We also found no Consumer Reports test of it. So when you see "Derila pillow reviews consumer reports" in Google suggestions, there's no lab verdict behind it that we could find: judge it on owner reviews, the returns terms and your own nights.
Watch out for imitations. A product with a very similar name, "Derilo Ergo", is sold online and scores 1.7/5 on Trustpilot. It is not the original Derila. Check the spelling before you pay.
Derila pillow UK price, 60-day returns and refunds
The price of the Derila pillow depends on the pack you pick and on the day's offers: the more pillows you buy, the lower the price per pillow. The brand suggests taking two (one each, or a spare while the cover is in the wash). I ordered a single pillow for this test, and that's enough to try it. Because the price changes so often, I'd rather send you to today's figure than print a number that's out of date by tomorrow.
What doesn't change are the returns terms on the official site:
- You have 60 days from delivery to ask for a return, even if you've simply changed your mind.
- You fill in the contact form, and customer service sends you a return number (RMA) and the address.
- Once they've received the parcel, the refund arrives within 14 working days. Postage costs are not refunded.
Those terms only apply if you buy from the official site. On Amazon or another marketplace, the seller's own policy applies. I've covered packs, where to buy in the UK and discount codes here: Derila pillow price and where to buy.
Are Derila pillows worth it? My final Derila Ergo pillow review verdict
The Derila Ergo does what a good cervical pillow should. It gives steady support to the head and neck, it doesn't collapse overnight, and the butterfly shape genuinely makes it easier to roll from back to side. For a neck that wakes up stiff, it's one of the most useful comfort buys I've tried this year. So, are Derila pillows any good? For the right sleeper, yes. The benefits of the Derila memory foam pillow show up after a week, not on night one: a calmer neck, better sleep for many, and less fidgeting. It won't suit every body no matter how you sleep, which is exactly why the 60-day returns matter.
I'd recommend it if
- you sleep on your side or back and wake with a stiff neck
- your current pillow goes flat and you spend the night folding it
- you want the option of sending it back (60 days)
Give it a miss if
- you sleep almost entirely on your front
- you want a pillow with adjustable height
- you're hoping for a treatment for sleep apnoea
One last tip: order from the official site only, so you get the real Derila and the 60-day returns. The button below takes you straight there.
Order the original Derila ErgoOfficial Derila site · 60-day returnsHas written about health and sleep for 9 years and tests pillows, mattresses and sleep accessories for readers who wake up with a stiff neck. She judges a pillow on what matters at night: neck support, height, heat, the adjustment period and the returns terms. How we test
Derila pillow FAQ
Is the Derila pillow really worth it?
For back and side sleepers who wake up with a stiff neck, it's good value as long as you give it three or four nights. It's less suited to front sleepers. With 60 days to return it from the official site (postage not refunded), the risk is limited.
Are Derila pillows legit?
Yes, Derila is a real brand with a 4.1/5 score from 46,037 Trustpilot reviews and a customer service team that answers complaints. Be wary of lookalikes such as "Derilo Ergo" and buy from the official site.
What are the most common Derila Ergo reviews complaints?
13% of Trustpilot reviews are 1 star. The main complaints are the pressure to add extras at checkout, some order or delivery problems and people who couldn't get used to the firmness.
Does the Derila pillow help with sleep apnoea?
It's not a medical device and doesn't treat sleep apnoea. It may make side sleeping more comfortable, which can reduce positional snoring in some people, but it doesn't replace CPAP or your doctor's advice.
Does the Derila pillow contain latex?
No. It's high-density memory foam with no latex, so if latex is what puts you off other pillows, this one doesn't contain any. New memory foam can smell faintly for a day; airing it sorts that out.
Can you wash the Derila pillow?
The cover is removable and machine washable. The foam itself doesn't go in the machine: just air it.