Knee Bolster for Sleeping
FailShoppers spend an estimated $59K a year here, so Knee Bolster for Sleeping is a Fail.
- Flapen Score
- 48 / 100Ranks 7,720 of 14,768 Health & Household niches · −1 vs the category median of 4948
- Market size
- $59K/yr40K searches / yr
- 90-day growth
- -15.7%search demand this quarter
- Competition
- 55%top-5 click share · 20 brands · 30 sellers
Flapen Score
Knee Bolster for Sleeping against its category
The dotted line is the Health & Household average. Past it, Knee Bolster for Sleeping is stronger. Inside it, weaker.
Market
The Knee Bolster for Sleeping market on Amazon at a glance
Shoppers on Amazon United States searched for Knee Bolster for Sleeping 40K times last year and spent an estimated $59K. The top 5 brands take 66% of clicks. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 5.8% of those searches ended in a purchase.
Shoppers searched for this 40K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 5.8% of those searches ended in a purchase. Searches in the last 90 days moved -15.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $59K a year.
- Searches, last 12 months
- 40K
- Growth, 90 days vs prior 90
- -15.7%
- Conversion, latest week
- 5.8%
- Market size, estimated
- $59Ka year
- Peak month
- August1.4× the quietest month
- Top search term
- knee bolster for sleeping19K searches a year
02 · Price
A sale here is worth $25.35.
Listings sell for $25.35 on average, from $11.29 to $35.01. Amazon reports units sold in ranges. This niche sold 2K to 3K a year. The average listing sells 0 to 100 of them. At $25.35 that is $0 to $3K a year per listing.
- Average price
- $25.35inside the $15 to $100 sweet spot
- Price range
- $11.29–$35.01
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 2K–3K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$3K
- Returns
- 3.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 3.2% of listings are out of stock. The average listing ranks #177 within Bedroom Aids & Accessories. It carries 2,408 reviews at 4.35 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 3.2%
- Average rank
- #177in Bedroom Aids & Accessories
- Average rating
- 4.35 starsAmazon United States average 4.42 stars
- Average reviews
- 2,408per listing
- Listings tracked
- 25
04 · Newcomers
3 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 47 months on average, so the names here are settling in.
- Launched, last 12 months
- 3
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 47 months
Products
Top Knee Bolster for Sleeping products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 14, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Everlasting Comfort Under Knee Pillow for Back Sleeping - Memory Foam Half Moon Leg Bolster Pillow for Back Pain Thoracic Support
- Price
- $29.22
- Rating
- 4.5/5
- Reviews
- 5,692
- Age
- 7y ago

5 STARS UNITED Knee Pillow for Back Sleeping Half Moon Bolster Pillow for Legs Under Knee Pillow for Sleeping on Back Memory Foam Leg Pillow for Back Pain White
- Price
- $33.30
- Rating
- 4.4/5
- Reviews
- 7,984
- Age
- 7y ago

TranquilRelax Knee Pillow for Back Sleeping Memory Foam Half Moon Bolster Pillow for Legs Under Knee Support Ankle & Foot Comfort Orthopedic Pillow for Side Sleepers (Grey 20.4 x 8 x 4.9)
- Price
- $17.63
- Rating
- 4.3/5
- Reviews
- 572
- Age
- 1y ago

Knee Pillow for Back Sleeping | Large Half Moon Bolster Pillow for Legs Under Knee Pillow for Sleeping on Back (20.5x 8x 4.5) Leg Pillow for Ankle and Foot Comfort Machine Washable Cover Grey
- Price
- $20.12
- Rating
- 4.2/5
- Reviews
- 3,137
- Age
- 6y ago

LVYSHOW Semi Roll Pillow Under Knee Pillow
- Price
- $19.43
- Rating
- 4.4/5
- Reviews
- 57
- Age
- 10mo ago
Trending
estimated 90-day click momentum
LVYSHOW Semi Roll Pillow Under Knee Pillow
- Price
- $19.43
- Rating
- 4.4/5
- Reviews
- 57
- Age
- 10mo ago

BlissTrends Memory Foam Knee Pillow Knee Pillow for Side Sleepers Leg Pillows for Sleeping Blood Circulation Elevation Pillow for Spine Aligning Sciatica Back Hip Knee Ankle Pain Grey
- Price
- $11.29
- Rating
- 4.4/5
- Reviews
- 2,813
- Age
- 2y ago

Shinnwa Knee Wedge Pillow Patented Convertible Knee Pillow for Back Sleeping Dual-Layer Memory Foam Triangle Pillow for Legs Post Surgery Knee Support Leg Elevation Back Pain Relief
- Price
- $33.72
- Rating
- 4.5/5
- Reviews
- 161
- Age
- 1y ago

MEGCXIT Leg Pillow Elevation Blood Circulation Leg Wedge for Elevation for Swelling Leg Elevating Pillow for After Surgery Memory Foam Foot Knee Pillow for Back Sleeping 23.616.88 Inch White/Grey
- Price
- $29.76
- Rating
- 4.6/5
- Reviews
- 2,670
- Age
- 2y ago

Everlasting Comfort Under Knee Pillow for Back Sleeping - Memory Foam Half Moon Leg Bolster Pillow for Back Pain Thoracic Support
- Price
- $29.22
- Rating
- 4.5/5
- Reviews
- 5,692
- Age
- 7y ago
Newest
by launch date
LVYSHOW Semi Roll Pillow Under Knee Pillow
- Price
- $19.43
- Rating
- 4.4/5
- Reviews
- 57
- Age
- 10mo ago

anzhixiu Half Moon Leg Bolster for Back Sleeping- Adjustable Height Under Knee Pillow for Ankles- Pure Memory Foam Leg Pillow for Sleeping on The Bed- Bubble
- Price
- $25.74
- Rating
- 4.6/5
- Reviews
- 93
- Age
- 11mo ago

SweetSlubr Knee Pillow for Side Sleepers Half Moon Memory Foam Bolster Pillow for Legs Ergonomic Design Wedge Elevation Pillow for Side & Back Sleeping Under Knee Support Foot Ankle Lumbar White
- Price
- $17.71
- Rating
- 4.0/5
- Reviews
- 344
- Age
- 11mo ago

Shinnwa Knee Wedge Pillow Patented Convertible Knee Pillow for Back Sleeping Dual-Layer Memory Foam Triangle Pillow for Legs Post Surgery Knee Support Leg Elevation Back Pain Relief
- Price
- $33.72
- Rating
- 4.5/5
- Reviews
- 161
- Age
- 1y ago

Core Products Jackson Roll Orthopedic Bolster Pillow - Neck Back Leg Knee & Arm Support Cervical & Lumbar Roll for Pain Relief Spinal Alignment & Travel Comfort for Bed or Chair- Gray
- Price
- $26.93
- Rating
- 4.3/5
- Reviews
- 497
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 55% of clicks. Leaders hold, but buyers still shop past them.
Brands
20 falling
Sellers
30
Est. top-5 brand share
66%
Top 20: 100%
Est. top-5 click share
55%
Top 20: 95%
Open market
30%
- 5 STARS UNITED20%
- Everlasting Comfort18%
- AllSett Health12%
- TranquilRelax12%
- LVYSHOW5%
- SweetSlubr4%
Demand
Knee Bolster for Sleeping search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top Knee Bolster for Sleeping search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- knee bolster for sleeping19K/yr
- roll pillow for under knees11K/yr
- knee bolster pillow5K/yr
- knee roll pillow5K/yr
Reviews and returns
What reviews say buyers love and hate about Knee Bolster for Sleeping
We read the reviews and the return reasons for every product selling here.
“Too big”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Knee Bolster for Sleeping questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









