TranquilRelax Half-Moon Memory Foam Knee Pillow

TranquilRelax’s half-moon memory foam knee pillow is described for positioning under the knees or legs, between the legs, or under the lower back. Its removable cover and cylindrical form make it a compact option for people seeking adjustable support, though customer feedback reports mixed firmness and comfort.

At a glance

Removable cover is described as washable, with the listing claiming it withstands weekly washes.
Memory foam core and half-moon shape are presented for leg and lower-back positioning.
The listing describes use between the legs, under the lower back, or under the knees or legs.

Price

$23.98Save 25%

Reference price: ~~$31.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Removable cover allows cleaning without washing the foam core.
Several suggested positioning options may suit buyers who want a pillow they can reposition.

Technical specifications

9 specifications

Identity
Brand	TranquilRelax

Construction and care
Fill material	Memory Foam
Form factor	Cylindrical
Cover	Removable Cover
Color	Grey
Size	Large
Number of pieces	1
Age range	Adult

Suggested positioning
Recommended uses	Use half moon pillow in four main positions: between legs, under lower back, under knees or legs

What to know before buying

Listing details to confirm

Listing dimensions conflict: the title highlight states 22" x 8.7" x 5.3", while a feature states 20.4" x 8" x 4.9". The listing also describes the form as both half-moon and cylindrical, so confirm the size and shape shown for the selected item before buying. Claims of pain relief, alignment, hypoallergenic foam and OEKO-TEX certification are listing claims, not independently verified here.

Who is it for?

A good fit for

Back sleepers looking for a removable-cover pillow to place under their knees or legs.
Buyers seeking a small support pillow that the listing says can also be positioned between the legs or under the lower back.

Less suited to

Shoppers who need a confirmed exact size or a clearly defined contour before purchase.
People who strongly prefer soft cushioning, given customer reports that the pillow can feel too hard or uncomfortable.

TranquilRelax Half-Moon Memory Foam Knee Pillow · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 698 ratings

5 stars69%69%
4 stars13%13%
3 stars7%7%
2 stars4%4%
1 star7%7%

Customer feedback highlights perceived usefulness for low-back and knee discomfort, along with positive comments about functionality, quality, size and value. Some customers also report that the pillow feels too hard or uncomfortable. This matters because the listing describes a memory foam core but does not give a firmness rating, so comfort may depend on personal preference and fit.

Positive themes

Customers report that the pillow helps with low-back or knee discomfort, with a customer summary also mentioning sciatica.
Feedback includes positive comments about functionality, quality and size.

Negative themes

Some customers find the pillow too hard and uncomfortable.

Mixed feedback

Customer impressions of firmness and comfort vary.

Frequently asked questions

What positions does the listing recommend?

It describes placing the pillow between the legs, under the lower back, or under the knees or legs.

Is the cover removable?

Yes. The listing identifies a removable cover and says it can withstand weekly washes. It does not specify washing instructions.

What size is the pillow?

The listing gives two different dimension sets, 22" x 8.7" x 5.3" and 20.4" x 8" x 4.9". Confirm the dimensions for the selected listing before purchase.

What do customers say about firmness and comfort?

Feedback is mixed. Some customers find the pillow too hard and uncomfortable, while the summary also reports positive experiences with functionality and pain relief.