square pillows
Skip itA deep review moat (43,741 avg reviews) — this niche doesn't clear our bar today.
Avg price
Great$21.86avg listing price — sweet spot $15–$100
Price range
Great$7.96–$64.20cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.7%return rate — above 5% kills the launch gate
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good4.3%search→purchase rate — share of searches ending in a sale
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Brand share
Okay77%top-5 brand share — brands hold most of the demand
Market size
Okay$170K$170K/yr · 183K searches
Growth
Bad-1.9%90-day search growth — must beat 0% to launch
Review moat
Bad43,741.18avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, square pillows is a $170K/yr Amazon United States market (183K searches/yr). The top 5 brands hold 77% of demand. Demand peaks in Aug. Verdict: Skip it — 49/100.
Data updated Jul 16, 2026 · scored weekly · How we score niches
square pillows market data
- Units sold / yr
- 8K–10K
- avg 250–500/product
- Revenue / yr
- $175K–$219K
- units × avg price
- Conversion rate
- 4.3%
- Avg BSR
- #69
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 86%
- Out of stock
- 0.0%
- Avg brand age
- 44 months
- Avg seller age
- 192 days
Competition & brand share
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.Brands
14 falling
Sellers
18
Top-5 brand share
77%
Top 20: 100%
Top-5 click share
54%
Top 20: 98%
Open market
18%
- MIULEE21%
- EDOW20%
- Amazon Basics17%
- Utopia Bedding10%
- HARBOREST9%
- JIEITIVE4%
Demand & seasonality
Weekly Amazon search volume, last 101 weeks — -1.9% search growth over the last 90 days.Peak months: Aug · busiest ÷ quietest = 1.6×
Top square pillows search terms
- square pillows104K/yr
- square pillow64K/yr
- pillow square8K/yr
- pillows square6K/yr
Top square pillows products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
MIULEE Throw Pillows Inserts Pack of 2 18x18 Inch 100% Virgin Fiber Filling Bed Couch Pillows
MIULEE$13.494.6★3,846 rev
EDOW Throw Pillow Insert LightweightSoft Polyester Down Alternative Decorative Pillow Sham Stuffer Machine Washable. (White 18x18)
EDOW$7.964.2★25,446 rev
Amazon Basics Square Hypoallergenic Down Alternative Pillow Insert Machine Washable Softness and Support 20 inch 2-Pack
Amazon Basics$17.424.4★1,866 rev
HARBOREST Ice Cube Cooling Pillow for Side Sleepers Memory Foam Side Sleeper Pillow Support Head & Neck for Pain Relief12x24x5
HARBOREST$33.374.2★1,896 rev
MIULEE Pillows Inserts Pack of 4 18x18 Inch 100% Virgin Microfiber Filling Throw Pillows for Bed Couch Sofa
MIULEE$19.774.7★1,512 rev
Newest
by launch date
MIULEE 18x18 Inch Pillows Inserts Pack of 4 Down Alternative Virgin Filling Comfy Support Throw Pillows for Sofa Couch Bed
MIULEE$20.88488 rev
Amazon Basics Square Hypoallergenic Down Alternative Pillow Insert Machine Washable Softness and Support 20 inch 2-Pack
Amazon Basics$17.421,866 rev
Amazon Basics Square Hypoallergenic Pillow Insert Down Alternative Fiberfill Sofa Bed Couch Decorative Stuffer 18 2-Pack
Amazon Basics$14.111,866 rev
Leeden 18x18 Pillow Inserts Pack of 2 18 Inch Throw Pillow Inserts Soft Fluffy Decorative Square Throw Pillows for Couch Sofa Bed and Home Decor White Pillows
Leeden$16.55237 rev
MIULEE Pillows Inserts Pack of 4 18x18 Inch 100% Virgin Microfiber Filling Throw Pillows for Bed Couch Sofa
MIULEE$19.771,512 rev
Trending
90-day click momentumMIULEE 18x18 Inch Pillows Inserts Pack of 4 Down Alternative Virgin Filling Comfy Support Throw Pillows for Sofa Couch Bed
MIULEE$20.884.8★
MIULEE Pillows Inserts Pack of 4 18x18 Inch 100% Virgin Microfiber Filling Throw Pillows for Bed Couch Sofa
MIULEE$19.774.7★
Amazon Basics Square Hypoallergenic Down Alternative Pillow Insert Machine Washable Softness and Support 20 inch 2-Pack
Amazon Basics$17.424.4★
EDOW Throw Pillow Insert LightweightSoft Polyester Down Alternative Decorative Pillow Sham Stuffer Machine Washable. (White 18x18)
EDOW$7.964.2★
MIULEE Throw Pillows Inserts Pack of 2 18x18 Inch 100% Virgin Fiber Filling Bed Couch Pillows
MIULEE$13.494.6★
What buyers say about square pillows
What buyers praise and complain about, mined from review topics.What buyers love
“Great quality and very reasonable pricing”
“Soft and smooth”
“Fit my cases perfectly”
“Very good cushions for the price”
“Soft and fluffy”
“Great Buy”
“So comfortable”
“As Described”
“Quality pillows”
“They keep their shape”
What buyers complain about
“No Fluff”
“Too thick”
“Way to BIG”
“They seem moderate to low quality”
“not enough cushion”
“Not as described”
“Still not worth a lower price”
“Not the most comfortable”
“Theyre fairly flimsy”
“a hard side when I bought it”
Top return reasons
Common questions
- Is square pillows profitable to sell on Amazon United States?
- The niche generates $170K/yr across 22 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -1.9%. Flapen's verdict: Skip it (49/100).
- How competitive is the square pillows niche?
- 14 brands and 18 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 77% of demand.
- What do buyers complain about in square pillows?
- Top complaints mined from reviews: Fluffiness, Thickness, Size-Overall. The return rate is 1.7%.
- When does demand for square pillows peak?
- Demand peaks in Aug; the busiest month runs 1.6× the quietest.
- What does it cost to enter the square pillows niche?
- Listings span $7.96–$64.20; the average listing price is $21.86 (sweet spot $15–$100). The average incumbent carries 43,741 reviews — the moat a new listing must climb.