My original Pillow Cube experience
I have tried many pillows, and the Pillow Cube’s tall, squared edge is a different approach. As a side sleeper with broad shoulders, I appreciated being able to place my shoulder close to the edge instead of continually scrunching a thinner pillow for height. It is a particular feel, though: I found my sample too thick when I moved onto my back or stomach.
I ordered the six-inch version of the older Pro. It arrived folded in its box in less than a week, though delivery times vary. The foam was solid and squishy, and in my experience it did not sleep hot. I used an ordinary pillowcase, which fit but looked odd on the unusual shape; a fitted case was available separately. These are observations about my original sample, not a test of every current model.

Who should consider it?
Side sleepers: The vertical edge can help fill the space between shoulder and head, especially if flatter pillows feel inadequate. Height still matters: a pillow that is too tall or too low can feel uncomfortable, and a softer mattress can change the gap.
Back and stomach sleepers: The six-inch version I tried felt too thick for me in these positions. People who switch positions may prefer a lower or adjustable option. Pillow Cube now markets a separate Combo Cube for back-and-side sleepers, but I have not tested that model here.
Neck discomfort: A pillow can help you find a comfortable position, but no shape guarantees pain relief. If discomfort persists, consult a qualified clinician.
Current Pillow Cube options
| Model | Design and fit | What to know |
|---|---|---|
| Side Cube Original | Solid foam, listed at 12 × 24 × 5 inches. | Fixed 5-inch height; the company listed it for $59.99 but marked it sold out when checked. |
| Side Cube Riser | Adjustable design with two removable one-inch risers, for 3-, 4- or 5-inch heights. | Listed at $79.99 when checked; not the older Pro I tested. |
| My original Pro sample | Solid foam, six inches high. | Historical test; names, covers and available sizes have changed. |
| Adjustable fill pillow | Add or remove fill rather than using a solid squared block. | More adjustable but a different feel. See our Coop comparison. |
Details checked October 2026 against Pillow Cube’s Original and Riser pages. Prices, covers and stock can change; check the selected model and size.
Pricing, returns and where to buy
My earlier review quoted older prices and a $20 return fee. Pillow Cube’s current direct return policy describes a 60-night satisfaction guarantee, excludes final-sale items, and lists a $15 return-shipping fee unless optional Re:do was purchased at checkout. Original shipping costs are not refunded; Re:do is nonrefundable. Check the policy and any regional or exchange charges before ordering.
Yawnder has carried Pillow Cube products; contact the showroom to confirm the specific model and size before visiting. Pillow purchases from Yawnder are subject to Yawnder’s own terms, which can differ from the manufacturer’s.
Pros and considerations
What I liked
- The square edge made it easier for me to keep loft next to my shoulder.
- The six-inch sample avoided the need to bunch up a thin pillow.
- The foam felt soft and did not sleep hot to me.
What to consider
- Fit is highly dependent on shoulder width and mattress firmness.
- My sample felt too thick on my back and stomach.
- Some fixed-height versions need a size choice; shaped cases may cost extra.
Frequently asked questions
Is Pillow Cube only for side sleepers?
The Side Cube is designed for side sleeping. Pillow Cube also sells a Combo Cube for side and back sleeping; check its specifications separately.
Can I adjust its height?
The older solid-foam Pro I tested was fixed height. The newer Riser uses removable layers, so choose the model that matches your preference.
Can I wash it?
Follow the care label for your specific model. Pillow Cube says not to wash the foam core; cover instructions vary by model.
Is the return free?
The brand’s current direct policy lists a $15 return-shipping fee unless Re:do was purchased at checkout; final-sale exclusions and other terms apply. Other sellers may have different policies.
Can a Pillow Cube prevent neck pain?
No pillow can guarantee that. The aim is a comfortable position; persistent or worsening symptoms deserve professional advice.
What about the Knee Cube?
Pillow Cube also sells a Knee Cube designed for positioning between the knees. It is a separate product from the head pillow reviewed here. Some side sleepers find a pillow between their knees more comfortable, but a pillow should not be presented as a treatment for inflammation or arthritis. Check dimensions, care and current availability before buying.
Compare Pillow Cube with an adjustable alternative
The solid-foam Pillow Cube comes in different fixed-height versions. Coop Original instead lets you add or remove fill. Our Coop Original vs Pillow Cube comparison includes model dimensions, side-sleeper fit, pricing and current returns/availability notes.
Read the head-to-head comparisonShop Coop Original (affiliate)
Affiliate disclosure: Yawnder may earn commission on Coop purchases. Check current merchant return terms before ordering; pillow policies differ from mattress trials.