(4.7) 3458 reviews

Side Cube Original

$59.99 USD
  • Made For Side Sleepers
  • Helps Relieve Neck Tension
  • Helps Align Neck and Spine

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The Side Cube Original is a cube-shaped memory foam pillow designed specifically for side sleepers. By filling the 90° gap between shoulder and head, it promotes neutral neck and spine alignment so you wake up with less neck and shoulder pain and improved sleep quality.

Now featuring a clean, lightweight pillow scrim in place of our previous quilted cover — giving you the same premium foam core at a better price. The scrim provides a smooth, breathable layer that lets the foam do what it does best without adding bulk or extra heat.

  • Purpose-built shape: Fills the 90-degree shoulder gap to cradle your head and support proper spinal alignment.
  • Premium foam core: Aero foam core which offers supportive, pressure-relieving comfort and breathability.
  • Lightweight pillow scrim: A smooth, breathable layer that protects the foam without trapping heat — pair it with your favorite pillowcase for a personalized sleep setup.
  • Comfort where it matters: Soft middle relieves ear pressure while supporting the head and neck for side sleeping.
  • More pillow, better value:  Get the same Side Cube performance at a better value.
  • Dimensions & weight: Standard Side Cube measures 12" W × 24" L × 5" H and weighs approximately 2.5 lb.
  • Fast recovery & setup: Ships compressed — allow 24–48 hours for full expansion; do not wash the foam core.

The Side Cube Original comes in standard 5" height that fits most adults. If you sometimes sleep on your back, consider a different model or the Combo Cube for mixed sleepers.

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What our friends have to say...

Our most helpful reviews

Best Sleep Of My Life With This Pillow!

Honestly I'm very picky with pillows, all my family members have loved really soft pillows but I always went for firm ones because otherwise my neck hurt every morning. But then in early 2021 I saw an add on Instagram and bought a pillow cube soon after. Now I've had it for over 2 years, much longer than I've been satisfied with any other pillow. Now I'm considering buying another one for when I stay over night at my boyfriend's place cause he likes soft pillows just like everyone else in my life 🤣

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11 people found this helpful

Supportive Pillow - Good For Side Sleeper

As a side sleeper, I was constantly plagued by neck and back pain upon waking. I wanted to hold off on sharing my thoughts until I'd thoroughly tested out this Pillow Cube. Having used this product for several weeks, I can confidently say that it has resolved all of my discomfort issues. My first order was for the standard size, but it was too tall for my preference. However, the return process was not only seamless but also environmentally friendly, which I truly appreciated. For reference, I'm 5'3 and weigh approximately 110lbs. I found that the 4-inch version of the Pillow Cube suits me far better.

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6 people found this helpful

Does Exactly What I Hoped It Would Do

I’ve suffered from neck problems for many years, and frequently wake up with muscle spasms which, in turn, often triggers migraines. I knew that my old pillow wasn’t working for me, but had no idea what to try as a replacement. After my wife and son both bought Pillow Cubes and raved about them, they convinced me to give one a try. Although it took a night or two to get accustomed to the extra support, I have not had any neck pain whatsoever since I started using it, and I find that I’m sleeping more soundly than before. The Pillow Cube is definitely worth every penny spent - I just wish I had it years ago.

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5 people found this helpful
Read All Reviews

MADE FOR SIDE SLEEPERS, BY SIDE SLEEPERS

Old fashioned pillows are made with cheap foam dumped into a sack. But sleepers need more support, and we will try anything to get it; folding, stacking, nothing works.

Pillow Cube fills the gap between your bed and your head, aligns your spine, and supports your noggin.

What if I sleep on my back and side?

Not a problem. Meet our latest addition to the family, the Combo Cube.

Designed for our noncommittal sleepy heads, the Combo Cube is the ultimate pillow for back & side sleepers.

We took our premium cut AeroFoam and sculpted a head-sized valley to cradle your noggin and keep your neck aligned, no matter how you sleep. Then we leveled it up by adding modular risers, giving you the ability to customize the height of your pillow to match your body, mattress, and sleep style. 

4.7
Rated 4.7 out of 5 stars
Based on 3,458 reviews
Total 5 star reviews: 2.8k Total 4 star reviews: 353 Total 3 star reviews: 112 Total 2 star reviews: 75 Total 1 star reviews: 101
3,458 reviews
  • Carla
    How old are you? 55-64
    What Position do you Sleep In? Side
    Bought For Pain relief
    3 days ago
    How old are you? 55-64
    What Position do you Sleep In? Side
    Bought For Pain relief
    Reviewing
    Side Cube Original
    Rated 5 out of 5 stars
    No more pain

    I don’t write reviews, but I made an exception for this awesome pillow. I have very broad shoulders so the area between my neck and the end of my shoulders is very large. My whole life I have spent stuffing and restuffing that area all through the night to stay comfortable, but no more. I sleep through the night and wake up refreshed. Thank you for this amazing pillow!!!!

    PC Profile picture for Pillow Cube
    Pillow Cube
    4 minutes ago

    Thank you so much for taking the time to share this — especially since you don’t usually leave reviews.

    We’re thrilled to hear the Side Cube Original has helped you finally get comfortable and sleep through the night without constantly adjusting your pillow. Finding the right support for broader shoulders can be a real challenge, so it’s amazing to know this has made such a difference in your rest and mornings.

    Thanks again for your kind words — we’re so glad you’re sleeping better! 🛌✨

  • Abby K.
    Verified Reviewer
    How old are you? 18-24
    What Position do you Sleep In? Side, Stomach
    Bought For Pain relief
    1 week ago
    How old are you? 18-24
    What Position do you Sleep In? Side, Stomach
    Bought For Pain relief
    Reviewing
    Side Cube Original
    Rated 5 out of 5 stars
    Great after years of use!

    I got my pillow cube 3 years ago when a friend recommended it to me! I used to wake up with significant neck, shoulders, and back pain, and now I don’t using this pillow! It has held up very well.

    PC Profile picture for Pillow Cube
    Pillow Cube
    35 minutes ago

    We love hearing long-term success stories like this! 😄💙

    Three years later and still sleeping comfortably is exactly what we hope for. It's amazing to hear that the Side Cube helped put an end to the neck, shoulder, and back pain you were waking up with, and that it's continued to hold up so well over time.

    A big thank you to both you and the friend who recommended us! We're honored to be part of your sleep routine and grateful you took the time to share your experience. Here's to many more years of comfortable, pain-free sleep!

  • Meredith
    Verified Reviewer
    How old are you? 35-44
    What Position do you Sleep In? Side
    2 weeks ago
    How old are you? 35-44
    What Position do you Sleep In? Side
    Reviewing
    Side Cube Original
    Rated 5 out of 5 stars
    Still going strong three years later!

    The best pillow I've ever purchased. I bought it three years ago and it's still in great shape. I can't recommend it enough!

    PC Profile picture for Pillow Cube
    Pillow Cube
    40 minutes ago

    Three years and still going strong? That’s the kind of long-term relationship we love to hear about. 😎🛌

    We’re thrilled your Side Cube is still holding up so well and continues to be the best pillow you’ve ever purchased. Hearing that it’s stayed in great shape after years of nightly use is a huge compliment.

    Thank you for the recommendation and for being part of the Pillow Cube family for the long haul! 💙

  • Kenzie
    4 months ago
    Reviewing
    Side Cube
    Rated 5 out of 5 stars
    5 Stars

    Excellent!

    PC Profile picture for Pillow Cube
    Pillow Cube
    3 months ago

    The Side Cube really is excellent! Wishing you countless more nights of the perfect sleep!

  • Jacob W.
    How old are you? Under 18
    What Position do you Sleep In? Side, Stomach
    Bought For Sleep help
    5 months ago
    How old are you? Under 18
    What Position do you Sleep In? Side, Stomach
    Bought For Sleep help
    Reviewing
    Side Cube
    Rated 5 out of 5 stars
    I still love my pillow cube after 2 years!

    I bought my cube 2 years ago and haven’t regretted it one bit! This thing is amazing and still feels like the first day I bought it! I got it because I kept waking up from headaches or neck pain but this was a game changer. I sleep on my side and it’s a true game changer for side sleepers!

    PC Profile picture for Pillow Cube
    Pillow Cube
    4 months ago

    Two years in and still going strong? That’s the kind of long-term relationship we love to hear about.

    We’re thrilled your Side Cube is still delivering day-one vibes and keeping those headaches and neck pain in check. For side sleepers, that neck-to-shoulder support can be a total game changer — and it sounds like yours is doing exactly what it was built to do.

    Thanks for sticking with us (and your Side Cube) for the long haul. Here’s to many more nights of side-sleeping bliss! 💙

FAQ

What are the dimensions of the pillow?

  • Height: 5 inch
  • Width: 12 inch
  • Length: 24 inch

“What if I sleep on my back?”

While the Pillow Cube was specifically designed for side sleepers, we have heard from some side/back sleepers that they enjoy the pillow too! But all in all, the pillow is intended for side sleepers.

Where do you ship to?

We currently ship within the United States.

What is in the foam?

Our high-quality foam is made of breathable, viscoelastic polyurethane.

What is the pillowcase made from?

The pillowcase is made out of polyester and spandex.

Can I return the pillow?

You may request an exchange or a refund within 60 nights of your initial purchase.

*Any product (bedding item, pillow, etc.) marked as final sale is final and cannot be returned or exchanged.

  • Returns and exchanges are only available within the 48 contiguous United States of America.
  • Your refund will be processed, minus any shipping costs that you paid at the time of your purchase.
  • There is a $15 return shipping fee, unless Re:do was purchased at checkout for $3.98, you will receive free shipping