between bed and wall filler
Worth a lookShows a sweet-spot price point ($33.34 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible$33.34avg listing price — sweet spot $15–$100
Competition
Great22%top-5 click share — an open shelf
Price range
Great$7.95–$83.63cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Great48%top-5 brand share — no brand owns this niche
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Review moat
Okay1,809.42avg incumbent reviews — the moat a new listing must climb
Returns
Okay3.8%return rate — above 5% kills the launch gate
Conversion
Okay2.3%search→purchase rate — share of searches ending in a sale
Market size
Okay$112K$112K/yr · 146K searches
Growth
Bad-11.1%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, between bed and wall filler is a $112K/yr Amazon United States market (146K searches/yr). The top 5 brands hold 48% of demand. Demand peaks in Jan–Aug. Verdict: Worth a look — 56/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
between bed and wall filler market data
- Units sold / yr
- 3K–3K
- avg 0–100/product
- Revenue / yr
- $83K–$100K
- units × avg price
- Conversion rate
- 2.3%
- Avg BSR
- #88
- Page quality
- 0%
- Prime
- 99%
- Sponsored
- 89%
- Out of stock
- 9.0%
- Avg brand age
- 28 months
- Avg seller age
- 160 days
Competition & brand share
Clicks spread well past the top 5 (22% combined) — an open shelf where new products get seen.Brands
36 falling
Sellers
45
Top-5 brand share
48%
Top 20: 88%
Top-5 click share
22%
Top 20: 57%
Open market
48%
- DEEPSHARK17%
- Vekkia14%
- Barpoullar7%
- HOMBYS6%
- M Mute Touch5%
- XetraDesign4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -11.1% search growth over the last 90 days.Peak months: Jan, Aug · busiest ÷ quietest = 1.7×
Top between bed and wall filler search terms
- mattress gap filler king bed30K/yr
- bed gap filler twin23K/yr
- bed gap filler side wall10K/yr
- twin bed gap filler9K/yr
- crib gap filler6K/yr
- mattress gap filler twin6K/yr
- twin bed wedge gap filler6K/yr
- mattress gap filler full6K/yr
- mattress filler5K/yr
- bed gap filler california king5K/yr
Top between bed and wall filler 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 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
DEEPSHARK Mattress Gap Filler Bed Gap Filler for Twin Mattress Extension for Headboard Seams Bed Space Cracks White(3946 Twin/XL)
DEEPSHARK$28.694.4★350 rev
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
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★350 rev
YENING Baby Bed Bumpers for Toddlers Foam Bed Guard Rail for Kids Bed Toddler Bed Bumper for Twin Full Queen King Size Bed Grey 1-Pack
YENING$20.564.7★1,381 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
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
Headboard Bed Gap Filler High Density Foam Mattress Extender Pillow Removable White 39x2x6
Generic$19.7023 rev
EUHAMS Twin Size Bed Wedge Pillow for Headboard Bed Gap Filller/Mattress Gap Filler (0-7) - Wedge Pillow Headboard Triangle Foam Pillows Wedges Between Headboards Mattress (Grey 39x10x6)
EUHAMS$21.51815 rev
Vekkia Twin Size Bed Wedge Pillow for Headboard/Bed Wedge Gap Filler/Mattress Gap Filler/Wedge Pillow to Close The Gap (0-6) Between Your Headboard and Mattress (39x10x7)
Vekkia$22.781,901 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 White
Couzssyhi$37.744.3★
Barpoullar Bed Gap Filler for Headboard Space Filler Bed Crack Pillow Stopper Wall Side Mattress Extender Memory Foam Mattress Gap Filler Twin Bed 39x4x6 Inches
Barpoullar$28.084.6★
Headboard Bed Gap Filler High Density Foam Mattress Extender Pillow Removable White 39x2x6
Generic$19.703.8★
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 buyers say about between bed and wall filler
What buyers praise and complain about, mined from review topics.What buyers love
“Fit perfect”
“As advertised”
“Excellent Product”
“The cushion is strong yet comfy”
“Comfortable and supportive”
“Good deal”
“Works well for intended purpose”
“I found the perfect way to achieve a comfortable night sleep”
“Soft and comfortable”
“Easy to use”
What buyers complain about
“Too small”
“Extremely poor quality”
“Did not work as I had hoped”
“Not thick enough to stay where its supposed to”
“Incorrect description”
“Very flimsy”
“Foam is weak n does not support the pillows I have on the bed”
“Not worth buying”
“Not as comfortable as it says in the description”
“Has a bad chemical smell”
Top return reasons
Common questions
- Is between bed and wall filler profitable to sell on Amazon United States?
- The niche generates $112K/yr across 76 tracked products. 3 of 9 products launched in the last 360 days are still selling. 90-day search growth is -11.1%. Flapen's verdict: Worth a look (56/100).
- How competitive is the between bed and wall filler niche?
- 36 brands and 45 sellers compete. The top 5 products take 22% of clicks and top 5 brands hold 48% of demand.
- What do buyers complain about in between bed and wall filler?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Functionality-Overall. The return rate is 3.8%.
- When does demand for between bed and wall filler peak?
- Demand peaks in Jan–Aug; the busiest month runs 1.7× the quietest.
- What does it cost to enter the between bed and wall filler niche?
- Listings span $7.95–$83.63; the average listing price is $33.34 (sweet spot $15–$100). The average incumbent carries 1,809 reviews — the moat a new listing must climb.