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In-depth Comparison (2024): Purple Harmony Pillow vs. Wondersleep Pillow

I tested 14 different pillows over the course of six months. I slept on each pillow for at least five nights each. I rated each pillow based on how comfortable it was to sleep on over an extended period of time, whether or not the construction seemed high quality to me, and my take on suitability for different body types and sleep positions. Here is an in-depth comparison of the Purple Harmony Pillow and Wondersleep Pillow.

At a Glance

Brand Name Purple Wondersleep
Pillow Name Harmony Pillow Pillow
Overall Rank #6 out of 14 #11 out of 14
Fill Type Solid Latex Foam Shredded Memory Foam and Polyfiber Mix
Firmness / Softness Soft Soft
Starting Loft 6.5 inches 6 inches
Sleep Positions Back Stomach
Body Types Petite, Average, Big-and-tall Petite, Average
Filling Comfort
Construction Quality
Score Out of 10 7.8 6.5

Detailed Reviews

Purple Harmony Pillow

Solid Latex Foam

#6 out of 14
A bouncy pillow with a unique feel. Great to try once, but I consider it a novelty like a water bed
  • Squishy and fun to squeeze
  • Soft interior
  • Grid prevents sweat build-up
  • Great for back-sleepers
  • Not adjustable
  • Bouncy when I lay my head on it
  • Jiggles when I shift my weight, which I find distracting as I fall asleep
  • Premium price
Firmness / Softness: Soft
Starting Loft: 6.5 inches
Sleep Positions: Back
Body Types: Petite, Average, Big-and-tall
Filling Comfort:
Construction Quality:

The Purple Harmony Pillow has a very unique feel since it is made of latex foam on the inside and a rubber-like grid built into its cover. The material is fun to squeeze because it is bouncy and squishy, but what makes a good stress ball doesn't necessarily make a good pillow. For back sleepers particularly worried about sweating, the Purple Harmony Pillow is worth trying, but I wouldn't recommend the pillow due to the bounciness.

Lying on the Purple Harmony Pillow feels like lying on a bouncy water balloon. My head will squish it down, and I can feel a distinct bounce as well as a jiggle. The pillow also wobbles when I shift my weight, which can sometimes keep me awake.

When I lie down on the pillow, I am distinctly reminded of a water balloon. It is soft enough to squish down and compress, but the elasticity of the latex foam means that my head bounces back. I'll also feel a small trembling vibration make its way through the pillow, not unlike the feeling of water swashing back and forth. Every time I shift my weight on the pillow, the pillow will jiggle. Because I shift my weight occasionally as I fall asleep, the wobbling of the pillow will snap me back awake. I've had several instances where I was close to falling asleep only to be brought back to attention from the wobble. Nevertheless, I do eventually fall asleep, so the pillow doesn't completely prevent me from sleeping.

The Purple Grid resides in the cover of the pillow. The material feels like the grips in a gel-grip pen. The latex foam inside has an elastic bounce.

The signature Purple Grid can be found in the cover of the pillow. The substance of the grid feels like a gel-grip pen. It is fun to squeeze, but when I lay my head on it, I mostly just feel the latex foam underneath. The latex foam is what gives the bounce. The grid serves mainly to provide aeration since solid foam pillows tend to trap heat and sweat against the sleeper. In my experience, I find the grid to be pretty effective in preventing sweat build-up, but if heat and sweat is a concern, down and down alternative pillows tend to be better for breathability than solid foam pillows in general.

The Purple Harmony Pillow comes in three different loft levels, but the options are separated by one inch each, according to the Purple website at my time of purchase. Though I appreciate the different options, a one inch difference is the difference between a size 6 and a size 9 shoe (for both men and women), and I'd prefer a fully adjustable pillow that can accommodate sizes in between. Because the Purple Harmony Pillow is not adjustable, I wouldn't recommend it for side-sleepers.

Overall, I consider the Purple Harmony Pillow a novelty experience akin to a water bed. It's fun to try once, but I don't want to sleep on it regularly. I would not consider it worth purchasing again at the price point that I paid.

Wondersleep Pillow

Shredded Memory Foam and Polyfiber Mix

#7 out of 14
An affordable pillow with a thin profile
  • Affordable price
  • Foam is certified by CertiPUR-US
  • Removable cover
  • Doesn't come with enough filling for me to consider it adjustable
  • Stiff memory foam chunks
  • Dominated by polyester fiber fill
Firmness / Softness: Soft
Starting Loft: 6 inches
Sleep Positions: Stomach
Body Types: Petite, Average
Filling Comfort:
Construction Quality:

On paper, the Wondersleep Premium Adjustable Pillow should be similar to the Saybrook and Coop pillows: it has shredded memory foam and polyester filling. However, that's where the similarities end. I selected this candidate because it was much cheaper than the other pillows while sporting the same reported features. I wanted to see what the difference was in person. Unfortunately, the pillow case quality, the adjustability, and the filling comfort level don't match up in my opinion.

The Wondersleep pillow has soft filling and a thin profile.

Immediately upon unpacking, I notice the pillow has much less filling compared to other pillows and is very thin. The thinness of the pillow defeats the purpose of the adjustability because it won't be in the loft range many people need. The loft might be okay for stomach sleepers who appreciate a thinner pillow. Though the initial loft measures at 6 inches, the pillow compresses a third of the way down for me when I lie down due to the softness.

The dominant feeling for me in the Wondersleep filling is the polyester fiber.

The sensation of the Wondersleep pillow fill is dominated by polyester fiber for me, with pieces of shredded memory foam buried throughout. The memory foam feels stiff, not just firm, as if it had been left out in the sun too long. The pillow reminds me of clumps of cattail fluff in the wild: mostly soft and fluffy but with random bits of hard seeds (or in this case, memory foam) inside.

Some pieces of foam in the Wondersleep pillow look yellowed.

Though many shredded memory foam pillows under $50 can look similar to the Saybrook and Coop pillows on paper, I recommend investing more to get the higher quality construction and better filling found in the top picks.

Picking the right pillow can be important. I did all the research here to make the process easier. I hope that this blog helps you as you make your decision.