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Size guide

Find your size at a glance.

Between sizes? Size down. They run slightly large.

All measurements in cm

  • XXS

    US 00

    Waist
    23–24"58–61 cm
    Hip
    33–34"84–86 cm
  • XS

    US 0–2

    Waist
    25–26"64–66 cm
    Hip
    35–36"89–91 cm
  • S

    US 4–6

    Waist
    27–28"69–71 cm
    Hip
    37–38"94–97 cm
  • M

    US 8–10

    Waist
    29–30"74–76 cm
    Hip
    39–40"99–102 cm
  • L

    US 12–14

    Waist
    31.5–33"80–84 cm
    Hip
    41.5–43"105–109 cm
  • XL

    US 16

    Waist
    34.5–36"88–91 cm
    Hip
    44.5–46"113–117 cm
  • XXL

    US 18

    Waist
    36–37.5"91–95 cm
    Hip
    46–47.5"117–121 cm

WaistMeasure around the narrowest part of your natural waist.

HipMeasure around the fullest part of your hips.

Soft cotton knit · Pull-on elastic waist

Length guide

One length, made to pool.

Every size comes in one full length. Only the waist & hip change.

  • Full length

    Inseam

    31.5"80 cm

    Hits the floor in flatsHits the floor in flats

How they fallA wide straight leg (about a 20" opening) with a 31.5" inseam, cut to hit the floor in flats. Wearing heels? They'll skim the floor.

Questions? Contact us

Size chart

All measurements are in inches.

Body measurements

SizeUS sizeWaist (in)Hip (in)
XXS0023 - 2433 - 34
XS0 - 225 - 2635 - 36
S4 - 627 - 2837 - 38
M8 - 1029 - 3039 - 40
L12 - 1431.5 - 3341.5 - 43
XL1634.5 - 3644.5 - 46
XXL1836 - 37.546 - 47.5

Garment (approximate, every size)

Rise (in)Inseam (in)Leg opening (in)Waist
1131.520Pull-on elastic

How to measure

For best results, measure over light clothing and keep the tape measure parallel to the floor.

  • Waist. Measure around the narrowest part of your natural waist.
  • Hip. Measure around the fullest part of your hips.
  • Inseam. Measure from the crotch to the bottom of the leg.

They run slightly large. If you are between sizes, we recommend sizing down.

Avienne Boutique
A little fit advice

Your fit.
Your way.

Avienne Boutique

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#1 Bestseller 2026Limited supply left

Cooling Ergonomic Memory Foam Neck Pillow

4.3/5 (26,459 reviews)
$19.99$57.99SAVE 65%
$19.99$57.99SAVE 65%
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Wake up without neck pain.

Real try-ons from TikTok. See how it looks, fits and moves.

Don’t take our word. Take theirs.

4.3/5 based on 26,459+ ratings

★★★★★

A game changer for better sleep

This pillow took a couple of nights to get used to, but now I can’t imagine sleeping without it. My neck and back pain are gone, and I no longer wake up several times a night adjusting my pillow. It’s comfortable in every sleeping position and provides excellent support. I would definitely recommend it to anyone experiencing neck or back pain.

StephVerified buyer
★★★★★

Neck pain relieved

The pillow surprisingly does align my neck while sleeping. I am generally wary of flat pillows, but I did wake up with little to no neck pain. I wish the cooling effect was better, and the pillow can’t be flipped over to use the other side for cooling, as the pillow only works on one side for neck relief. The arm rests don’t do anything for me because I don’t sleep with my arms that way. It is easy to clean, either spot cleaning or washing in the machine and not much effort to put back together. Overall, it’s a good value, though it is a bit firm and sometimes interferes with my CPAP mask. I still prefer a lofty, squishy pillow, but this did help my neck pain, and I sleep well with it.

Shari ManteufelVerified buyer
★★★★★

Hubby sleeps much better now.

My husband absolutely love this pillow! The brochure said it could take up to two weeks to see full results, but he honestly noticed an improvement after the very first night. He’s been sleeping on it for over a month now, and feels wonderful. He used to wake up with a stinging pain in my lower neck almost every day, and that pain has actually disappeared.The ergonomic shape takes a little getting used to because it doesn't look like a traditional pillow, but once he laid his head down, it made sense. The memory foam conforms nicely around his head, neck, and shoulders, and gives him a very supported feeling without being hard or uncomfortable. He sleep both on my back…

SteveVerified buyer
★★★★★

HELPED KEEP MY HEAD STEADY & had RELIEF IN AM

This pillow is very different from the standard average pillows because of how it is conformed. When I first used it I definitely felt improvement the next day and it seemed like it kept my head steady & stable during the night. I tend to roll around & I do put my arms up on the pillow. So using the side areas where they’re concave were a little odd at first, and that’s the reason why this product only gets four stars. I find that my arms and hands don’t align completely with the indentation in the pillow. The other thing that is unique is that the pillowcase that I put on it is loose and floppy; however, I have seen where there are pillowcases that can form to these…

KRIS_VaBeachVerified buyer
★★★★★

Excellent! I have a slipped C5 disc and this pillow changed my life!

I slipped my C5 disc doing CrossFit six years ago. If you’re reading this and you’ve experienced a cervical disc injury, you know how painful it can be. For the last six years, I’ve lived with near-constant pain — shooting pain from my neck up into my head, down my arm, and numbness in my arm. I’ve tried multiple pillows over the years and never found one that truly helped or gave me consistent relief.About six weeks ago, I slept wrong and had a major flare-up. It was almost as painful as the original injury. That’s when I decided it was time to try something different.This pillow caught my attention because of its contour shape, the way your head rests in it, and the…

Duval ChadVerified buyer
★★★★★

No more TMJ headaches!

Amazing pillow that fully supports my neck. I have dealt with TMJ pain for ages but this year it has been a lot more prevalent. It was beginning to become an increasing loop of misery since it was causing headaches which would make me clench more which would make the headaches worsen. After several months of this I decided enough was enough and sought to do something about it.I got this pillow after seeing the reviews, but it was initially too low to help me. I did email the company with the email listed and they got back to me the same day! I ordered the insert that raises it a bit more and after about a week i received it. After receiving it it was the perfect fit and I…

Nyota SunguraVerified buyer
★★★★★

I Noticed A Difference the First Night!

I absolutely love this pillow! The brochure said it could take up to two weeks to see full results, but I honestly noticed an improvement after the very first night. I've been sleeping on it for about a week now, and I feel wonderful. I used to wake up with a stinging pain in my lower neck almost every day, and that pain has actually disappeared.The ergonomic shape takes a little getting used to because it doesn't look like a traditional pillow, but once I lay my head down, it makes sense. The memory foam conforms nicely around my head, neck, and shoulders, and gives me a very supported feeling without being hard or uncomfortable. I sleep both on my back and side, and it…

lee morganVerified buyer
★★★★★

If you have hEDShypermobility, you NEED this pillow!

I LOVE this pillow, and I can’t sleep in anything else now without waking up with neck pain. TLDR: it’s amazing for side and back sleeping, and the case it comes with washes and dries easily and even helped my skin!I have hEDS and have hypermobile joints, a bad back, and migraines caused by issues in my neck. I can’t believe it took me this long to buy one of these pillows, but I’m so glad I finally did. I waited 3 months to write this review to make sure it was really worth praising, and it really is! Before using this pillow, I had bad neck pain pretty much every day. Now, I don’t start the day either as much neck pain as I did before. The pain is still there (because…

Helen HorneVerified buyer
★★★★★

Nearly Two Years Later, I Still Wake Up Pain Free

I'm a 40 year old man in decent shape, but for a long time, I woke up every morning with soreness/tightness in my neck or lower back. The first 30-60 minutes after getting out of bed would be spent trying to loosen up and get comfortable. I never expected a pillow to make such a dramatic difference, but this one genuinely changed my life. The difference was noticeable from the very first night. I'm not exaggerating when I say I woke up with absolutely no pain whatsoever. I was honestly surprised by how quickly I noticed a difference. I had written off the morning aches as me "getting old." I couldn't have been more wrong! The indentation in the middle helps position your…

JDVerified buyer

THE DETAILS, WITHOUT THE GUESSWORK

Questions? Answered.

Fit, feel and everything in between.

Neck supportArm slotCooling
Does it work for side sleepers?

Yes. The higher sides support your neck so it doesn’t sink.

What is the arm slot for?

Side sleepers can rest an arm under the pillow without it going numb.

Can I wash it?

The cover zips off and is machine washable. Spot clean the foam.

How long does shipping take?

Orders ship within 24 hours with tracked and insured shipping. Delivery usually takes 7–14 business days.

Will I get tracking?

Yes. You’ll get a tracking link by email as soon as your order ships.

What if it doesn’t fit?

Contact us within 30 days and we’ll help with an exchange or return. The return policy explains the conditions.