Mattress Gap Filler
Worth a lookShows a sweet-spot price point ($35.74 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible$35.74avg listing price — sweet spot $15–$100
Price range
Great$14.19–$83.63cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great28%top-5 click share — an open shelf
Brand share
Great54%top-5 brand share — no brand owns this niche
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Returns
Good2.7%return rate — above 5% kills the launch gate
Market size
Good$366K$366K/yr · 428K searches
Review moat
Okay1,864.8avg incumbent reviews — the moat a new listing must climb
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Growth
Bad-18.9%90-day search growth — must beat 0% to launch
Is mattress gap filler profitable on Amazon?
According to Flapen's Amazon United States niche tracking, mattress gap filler is a $366K/yr Amazon United States market (428K searches/yr). The top 5 brands hold 54% of demand. Demand peaks in Jan–Feb–Mar. Verdict: Worth a look — 59/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
mattress gap filler market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 8K–10K
- avg 100–250/product
- Revenue / yr
- $286K–$357K
- units × avg price
- Conversion rate
- 2.4%
- Avg BSR
- #69
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 95%
- Out of stock
- 5.8%
- Avg brand age
- 25 months
- Avg seller age
- 191 days
Competition: brands, sellers & click share
Clicks spread well past the top 5 (28% combined) — an open shelf where new products get seen.Brands
32 rising
Sellers
39
Top-5 brand share
54%
Top 20: 92%
Top-5 click share
28%
Top 20: 65%
Open market
41%
- Vekkia24%
- Bedluxe8%
- HOMBYS8%
- DEEPSHARK8%
- Barpoullar6%
- XetraDesign5%
mattress gap filler demand & seasonality
Weekly Amazon search volume, last 104 weeks — -18.9% search growth over the last 90 days.Peak months: Jan, Feb, Mar · busiest ÷ quietest = 2.6×
Top mattress gap filler search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- bed gap filler king101K/yr
- mattress gap filler52K/yr
- bed wall gap filler30K/yr
- bed gap filler full28K/yr
- headboard gap filler king26K/yr
- mattress gap filler queen22K/yr
- king size bed wedge gap filler23K/yr
- bed crevice filler8K/yr
- king bed gap filler16K/yr
- space filler between bed and wall18K/yr
Top mattress gap filler products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Bedluxe King Wedge Pillow Headboard (76x10x6) Bed Wedge Pillow for Headboard Foam Headboard Pillow Bed Gap Filler King - Fill The Gap (0-7) Mattress Gap Filler (White)
Bedluxe$24.254.5★1,605 rev
Vekkia King Size Bed Wedge Pillow for Headboard/Bed Wedge Gap Filler/Mattress Gap Filler/Wedge Pillow Headboard to Close The Gap (0-6) Between Your Headboard and Mattress (Grey 76x10x7)
Vekkia$27.294.5★1,901 rev
Voctriam Bed Wedge Gap Filler King (76x 8x 6) Wedge Pillow for Headboard Gap 0-8 Mattress Gap Filler Pillow to Fill The Gap Between Mattress and Wall with 2 Side Large Pockets
Voctriam$38.794.2★365 rev
HOMBYS Wedge Pillow Headboard for Bed Gap Foldable Bed Wedge Gap Filler Queen Size Matterss Gap Filler Multi Functional Bed Crack Pillow Fill The Gap (0-7) Between Your Headboard and Mattress White
HOMBYS$38.534.4★790 rev
FOUXTEL 4 Modes Pillow Wedge for Headboard Gap Foldable Bed Wedge Pillow Bed Gap Filler King Size Fill The Gap (0-7) Mattress Gap Filler Long Pillow Between Headboard and Mattress
FOUXTEL$40.944.2★167 rev
Newest
by launch date
Barpoullar 79x2x12 Inch Headboard Gap Filler with Foam Space Filler Between Bed and Wall Bolster Pillow Bed Gap Filler Beige
Barpoullar$48.6527 rev
Couzssyhi Bed Wedge Gap Filler King Size Wedge Pillow for Headboard Gap Foldable Mattress Gap Filler Close The Gap (07) Between Headboard and Mattress Bed Crack Pillow 76106 in White
Couzssyhi$37.74121 rev
Couzssyhi Bed Wedge Gap Filler King Size Wedge Pillow for Headboard Gap Foldable Mattress Gap Filler Close The Gap (07) Between Headboard and Mattress Bed Crack Pillow 76106 in Gray
Couzssyhi$38.45121 rev
Headboard Bed Gap Filler High Density Foam Mattress Extender Pillow Removable White 39x2x6
Generic$19.7023 rev
FOUXTEL 4 Modes Pillow Wedge for Headboard Gap Foldable Bed Wedge Pillow Bed Gap Filler King Size Fill The Gap (0-7) Mattress Gap Filler Long Pillow Between Headboard and Mattress
FOUXTEL$40.94167 rev
Trending
90-day click momentumBarpoullar 79x2x12 Inch Headboard Gap Filler with Foam Space Filler Between Bed and Wall Bolster Pillow Bed Gap Filler Beige
Barpoullar$48.654.6★
Couzssyhi Bed Wedge Gap Filler King Size Wedge Pillow for Headboard Gap Foldable Mattress Gap Filler Close The Gap (07) Between Headboard and Mattress Bed Crack Pillow 76106 in Gray
Couzssyhi$38.454.3★
Couzssyhi Bed Wedge Gap Filler King Size Wedge Pillow for Headboard Gap Foldable Mattress Gap Filler Close The Gap (07) Between Headboard and Mattress Bed Crack Pillow 76106 in White
Couzssyhi$37.744.3★
DEEPSHARK Mattress Gap Filler Bed Gap Filler for King Mattress Gap Filler Mattress Extension Filler for Headboard Seams Bed Space Space Cracks White(78412 King)
DEEPSHARK$52.214.4★
FOUXTEL 4 Modes Pillow Wedge for Headboard Gap Foldable Bed Wedge Pillow Bed Gap Filler King Size Fill The Gap (0-7) Mattress Gap Filler Long Pillow Between Headboard and Mattress
FOUXTEL$40.944.2★
What reviews say buyers love and hate about mattress gap filler
What buyers praise and complain about, mined from review topics.What buyers love
“Fit well”
“Excellent Product”
“As advertised”
“Soft and comfortable”
“pillow is firm”
“Good value for the money”
“Good night sleep”
“It works well so far”
“Soft foam fabric”
“soft foam”
What buyers complain about
“It doesnt fit like I would like”
“Incorrect description”
“It doesnt do what item is for”
“not perfect”
“Its very flimsy”
“Its a little pricey for what it is”
“Not thick enough to stay where its supposed to”
“Foam is weak n does not support the pillows I have on the bed”
“Doesnt expand or help”
“Has a bad chemical smell”
Top return reasons
Common mattress gap filler questions
- Is mattress gap filler profitable to sell on Amazon United States?
- The niche generates $366K/yr across 64 tracked products. 3 of 9 products launched in the last 360 days are still selling. 90-day search growth is -18.9%. Flapen's verdict: Worth a look (59/100).
- How competitive is the mattress gap filler niche?
- 32 brands and 39 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 54% of demand.
- What do buyers complain about in mattress gap filler?
- Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Functionality-Overall. The return rate is 2.7%.
- When does demand for mattress gap filler peak?
- Demand peaks in Jan–Feb–Mar; the busiest month runs 2.6× the quietest.
- What does it cost to enter the mattress gap filler niche?
- Listings span $14.19–$83.63; the average listing price is $35.74 (sweet spot $15–$100). The average incumbent carries 1,865 reviews — the moat a new listing must climb.