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Waking up with neck pain? Sleep experts say pillow stacking may be to blame
Sleep experts explain what pillow stacking does to your neck — and how to support it properly.
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Picture your perfect bed — how many pillows are on there? If you imagine two pillows on each side, then you might be a pillow stacker — but is that inherently a bad thing? "It's not automatically bad — but it often becomes a problem," says Dr. Raj Dasgupta, chief medical adviser for Sleepopolis. “Stacking pillows usually pushes the head and neck into flexion, meaning the chin is angled toward the chest." Over time, Dasgupta says this can lead to a host of negative consequences, from neck strain and disrupted sleep quality to masking signs of an underlying medical issue, like heart failure or obstructive sleep apnea. In some cases, it may even contribute to morning headaches.
But what if sleeping with two or more pillows is the only way you can actually get some shut-eye at night? And how do you know whether your pillow setup is supporting your spine — or sabotaging it? We spoke with three sleep experts to understand why pillow stacking isn't recommended, the consequences of doing so and what to do instead to better support your neck and get more restorative rest.
Why experts don't recommend pillow stacking
We spoiled the answer to "should you pillow stack" in the intro — but let's dive deeper into why it’s a habit worth breaking. While pillow needs can vary depending on whether you're a back, side or stomach sleeper, most experts agree that the goal is the same: keep your spine in neutral alignment. That’s where stacking can become an issue.
Dr. Hossein Aziz, board-certified spine surgeon at DISC Sports and Spine Center, says the question of pillow stacking is one he gets regularly: "Patients come in with neck pain or stiffness, and when I ask about sleep, they tell me they use two or three pillows because it feels comfortable at first. The problem is that stacking pillows under the head usually forces the neck into a flexed position for hours. That increases stress on the cervical discs, facet joints and surrounding muscles."
Part of the reason it can feel good initially is simple — elevating your head can create a sense of support or relief. But over the course of six to eight hours, that prolonged flexion adds up.
Over time, he says this can absolutely contribute to chronic neck pain. In fact, he adds, "Over the years, I have seen poor sleep posture contribute to worsening degenerative changes in the cervical spine. Chronically poor alignment can accelerate disc wear, contribute to muscle imbalance and aggravate conditions like cervical spondylosis or nerve compression. For patients who already have neck arthritis or have undergone spine surgery, poor alignment at night can slow recovery and prolong symptoms." He also cautions that sleeping in this position can lead to waking up with a headache at the base of your skull. And while side sleepers may need a higher-loft pillow to fill the space between the shoulder and neck, that's different from stacking multiple soft pillows that compress unevenly and push the head forward.
Dasgupta agrees that pillow stacking can cause misalignment, which, over time, can contribute to neck and shoulder pain. He also cautions that pillow stacking may also be masking signs of something more serious: "People may unconsciously use extra pillows to elevate their head and chest, which helps alleviate symptoms of certain conditions that are worse when lying flat. If you recently started needing two pillows to sleep comfortably, or if you experience other symptoms like shortness of breath, fatigue, swelling in your legs or chest pain, it's recommended that you consult with a health care professional for a proper evaluation."
Signs your pillow setup is what's hurting your neck or back
So, how do you know your stacking habit is contributing to your neck, shoulder or back pain?
Dasgupta and Aziz say that if you consistently wake up in the morning with one or more of these symptoms, it’s time to take a closer look at how your pillow setup might be affecting your sleep posture:
Neck stiffness
Headaches at the base of your skull
Shoulder pain or stiffness
Tingling in the arms
Frequently adjusting your pillows during the night
"If pain improves as the day goes on, that usually means there’s a sleep alignment issue," says Dasgupta.
In other words, if you feel worse when you wake up but loosen up after moving around, your pillow height — or lack of proper support — could be part of the problem.
Of course, pillows are just one potential culprit behind your inability to turn your neck to the left (or right) in the morning. Your sleep position, overall posture and mattress all play a role too — which is why choosing the best mattress for your sleep style is just as important as finding the right pillow.
Related: Best mattress deals
How to properly support your neck
According to Aziz, the issue isn’t about the number of pillows you’re using — it’s about whether your neck stays properly aligned overnight. "The goal is simple spinal alignment. I explain it to patients in my office by counseling them that their neck should look straight from the front and side when they are lying down," says Aziz. "If you're unsure, having a family member look at your alignment or even taking a quick photo can be surprisingly helpful," he adds.
In other words, your head shouldn’t tilt forward, drop backward or lean to one side. If it does, your pillow likely isn’t doing its job.
So, how do you find the best pillow to promote better alignment? Our experts agree that it comes down to loft (height) and firmness — and the right combination depends largely on your sleep position.
Stomach sleepers: "Stomach sleepers typically need a very low loft or no pillow at all to avoid neck rotation," says Dasgupta.
Back sleepers: "Back sleepers usually do best with a medium loft that supports the curve of the neck without lifting their head too much," says Dasgupta. Specifically, he recommends trying a memory foam or adjustable-fill pillow. He also says placing a pillow under your knees can help maintain better spinal alignment.
Side sleepers: "Side sleepers typically need a higher loft to fill the space between their shoulder and head," says Dasgupta. He recommends choosing a firmer pillow and placing a second pillow between your knees to help reduce spinal strain. Cuddling up with a body pillow can also be effective, says Lauri Leadley, founder and clinical sleep educator at Valley Sleep Center.
For those dealing with chronic neck pain, Aziz says he often recommends "cervical contour pillows that support the natural curve of the neck while allowing the head to rest comfortably. Many of my patients also do well with firmer pillows rather than very soft ones."
And if lower back pain is part of the equation, you may just need a small adjustment. "Placing a pillow under the knees for back sleepers or between the knees for side sleepers can make a noticeable difference," he adds.
Best pillows, based on your sleep style and preferences
There’s no one best pillow for everyone — the right choice depends on your sleeping style, medical conditions, preferred materials and budget. With that said, here are some pillows to kick off your research. (Psst: Check out our full list of the best pillows for more options.)
Priced under $40, the Quince Premium Down Alternative Pillow is a strong value for anyone who prefers to skip memory foam and adjustable-fill designs. Plus, you can get two for less than what you’d typically pay for one at many other retailers. The hypoallergenic pillow comes in three firmness levels and two sizes (standard and king) to suit different sleep styles. It features a 100% polyester fill and a 100% cotton shell, offering down-like loft and support without the allergens — or the steep price tag.
On Quince’s website, the pillow has more than 2,000 reviews and an average rating of 4.7 out of 5 stars.
If you’re a side sleeper who prefers memory foam over adjustable-fill designs, the Weekender Gel Memory Foam Pillow is a solid option. In addition to its affordable price, the pillow is CertiPUR-US certified, meaning the foam meets certain standards for content and durability.
It has a contouring yet firm feel that works well for side sleepers. It’s also marketed as cooling, though online reviews are mixed on that front. Overall, the pillow earns mostly positive feedback, but keep in mind it can take a day or two to fully expand after being unboxed.
The Utopia Down Alternative Pillow is an excellent option if you’re looking for better support on a budget. These soft pillows have more than 53,000 five-star reviews on Amazon and feature double-stitched fabric around the perimeter to help extend their longevity, meaning they shouldn’t flatten as quickly.
While they’re advertised on Amazon as suitable for all sleep styles, they fall in the medium-soft range, making them best suited for back sleepers.
Available in four height options, this two-sided pillow has a firmer foam side and a plusher fill side, making it easier for back sleepers to fine-tune spinal alignment. It also stands out for its breathable mesh cover and built-in air vents, which help promote airflow throughout the night.
This curved pillow is designed to support proper spinal alignment for side sleepers. Its 100% adjustable filling lets you customize the loft for a personalized fit. To ensure safety and quality, the cooling, gel-based memory foam is CertiPUR-US certified, and the fabric meets Oeko-Tex Standard 100 standards.
Following Dasgupta’s advice, this soft-yet-firm pillow has a low profile that can be further adjusted by customizing the fill. It combines memory foam with sculptable fill designed to resist sagging more than many other adjustable pillows. The main drawback is that it’s not widely available outside the company’s website.
For individuals with chronic neck pain, Dasgupta and Aziz both recommend trying a cervical pillow — a contoured pillow that's designed to support the neck's natural C-shaped curve. This Headlever option stood out for its multiple thickness choices, machine-washable cover and three adjustable compartments, letting you fine-tune the fill for optimal alignment.
If you need a bit of elevation, Aziz recommends a wedge pillow instead of stacking pillows, since it raises the entire upper torso rather than just the head, keeping your body better aligned. "Wedge pillows can be helpful for select patients, but they should support the upper body rather than just the head and neck," says Aziz. This InteVision option is large enough to support the full upper body and is made from breathable materials for added comfort.
FAQs
Does stacking pillows help with reflux or snoring?
According to Aziz, not really. "Stacking pillows under the head alone is usually not effective and often creates neck problems. When patients in my practice have reflux or snoring issues, I recommend elevating the upper body as a unit. A wedge pillow that supports the chest and torso or an adjustable bed works much better and avoids excessive neck flexion."
How often should you replace your pillow?
Aziz and Dasgupta agree that you should be swapping out your pillows every one to two years — far more often than many of us actually do. Over time, pillows lose their shape, firmness and ability to properly support your neck. "In my experience, old, flattened pillows are a very common contributor to neck pain. If a pillow no longer holds its shape or rebounds when you press on it, it is no longer providing meaningful support, even if it feels familiar," says Aziz.
Meet our experts
Raj Dasgupta, MD, FACP, FCCP, FAASM, chief medical adviser for Sleepopolis
Hossein Aziz, MD, board-certified spine surgeon at DISC Sports and Spine Center
Lauri Leadley, founder, president and clinical sleep educator at Valley Sleep Center.
Our health content is for informational purposes only and is not intended as professional medical advice. Consult a medical professional on questions about your health.
