---
title: "Mattress Gap Filler — $30K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/mattress-gap-filler"
last_updated: "2026-08-12T14:21:31.920Z"
locale: en
meta:
description: "Amazon product research for mattress gap filler: $30K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mattress gap filler: $30K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mattress Gap Filler — $30K/mo Amazon US Product Research"
---
# **Mattress Gap Filler**
**Worth a look**
Shows a sweet-spot price point ($35.74 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 54Growth 16Conversion 30Competition 87Returns 57Price range 94Avg price 95Brand share 81Review moat 46Quality gap 70
**Avg price**
**Incredible****$35.74**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$14.19–$83.63**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****28%**
top-5 click share — an open shelf
**Brand share**
**Great****54%**
top-5 brand share — no brand owns this niche
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Returns**
**Good****2.7%**
return rate — above 5% kills the launch gate
**Market size**
**Good****$366K**
$366K/yr · 428K searches
**Review moat**
**Okay****1,864.8**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****2.4%**
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 ~~](https://flapen.com/research/methodology)
## **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.
13K8KHoliday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb, Mar · busiest ÷ quietest = 2.6×
[**Open Trend **](https://flapen.com/research/us/health-household/mattress-gap-filler/trend)
## **Top mattress gap filler search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **bed gap filler king**101K/yr-34.7%2.5% conv. - **mattress gap filler**52K/yr+2.4%0.9% conv. - **bed wall gap filler**30K/yr-4.1%1.0% conv. - **bed gap filler full**28K/yr-15.0%0.7% conv. - **headboard gap filler king**26K/yr-16.1%2.3% conv. - **mattress gap filler queen**22K/yr-14.0%2.2% conv. - **king size bed wedge gap filler**23K/yr-32.1%4.2% conv. - **bed crevice filler**8K/yr+130.0%0.9% conv. - **king bed gap filler**16K/yr-28.7%2.6% conv. - **space filler between bed and wall**18K/yr-39.3%0.3% conv. [**All search terms **](https://flapen.com/research/us/health-household/mattress-gap-filler/search-terms)
## **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.
0%3%$11K6%$22K9%$33K12%$44K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$24.25**4.5★1,605 rev](https://www.amazon.com/dp/B0CGD2HS9N) [2**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**$27.29**4.5★1,901 rev](https://www.amazon.com/dp/B0CW92X1F8) [3**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**$38.79**4.2★365 rev](https://www.amazon.com/dp/B0CPSNDKL9) [4**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**$38.53**4.4★790 rev](https://www.amazon.com/dp/B0CQP28RJK) [5**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**$40.94**4.2★167 rev](https://www.amazon.com/dp/B0DZ6R4H34)
**~~View all top sellers →~~**
### **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**$48.65**27 rev5mo ago](https://www.amazon.com/dp/B0GM4CKYH1) [**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**$37.74**121 rev8mo ago](https://www.amazon.com/dp/B0G1YKTB7C) [**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**$38.45**121 rev8mo ago](https://www.amazon.com/dp/B0G1YH28C8) [**Headboard Bed Gap Filler High Density Foam Mattress Extender Pillow Removable White 39x2x6**Generic**$19.70**23 rev10mo ago](https://www.amazon.com/dp/B0FR46JXGD) [**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**$40.94**167 rev1y ago](https://www.amazon.com/dp/B0DZ6R4H34)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Barpoullar 79x2x12 Inch Headboard Gap Filler with Foam Space Filler Between Bed and Wall Bolster Pillow Bed Gap Filler Beige**Barpoullar**$48.65**4.6★**▲ 303%**](https://www.amazon.com/dp/B0GM4CKYH1) [**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**$38.45**4.3★**▲ 219%**](https://www.amazon.com/dp/B0G1YH28C8) [**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**$37.74**4.3★**▲ 124%**](https://www.amazon.com/dp/B0G1YKTB7C) [**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**$52.21**4.4★**▲ 68%**](https://www.amazon.com/dp/B0CLJ7YTF9) [**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**$40.94**4.2★**▲ 56%**](https://www.amazon.com/dp/B0DZ6R4H34)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mattress gap filler**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**14%
*“Fit well”*
**Quality-Overall**12%
*“Excellent Product”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Comfort-Overall**8%
*“Soft and comfortable”*
**Cushion**8%
*“pillow is firm”*
**Value For Money**6%
*“Good value for the money”*
**Sleep Quality**5%
*“Good night sleep”*
**Efficiency**5%
*“It works well so far”*
**Soft Feel**3%
*“Soft foam fabric”*
**Foam**3%
*“soft foam”*
### **What buyers complain about **
**Size-Overall**20%
*“It doesnt fit like I would like”*
**Advertised Vs Actual Product**6%
*“Incorrect description”*
**Functionality-Overall**6%
*“It doesnt do what item is for”*
**Quality-Overall**5%
*“not perfect”*
**Strength**5%
*“Its very flimsy”*
**Value For Money**4%
*“Its a little pricey for what it is”*
**Thickness**4%
*“Not thick enough to stay where its supposed to”*
**Cushion**4%
*“Foam is weak n does not support the pillows I have on the bed”*
**Stretchability/Expandability/Elasticity**3%
*“Doesnt expand or help”*
**Smell**3%
*“Has a bad chemical smell”*
### **Top return reasons **
**Size-Overall**38%
**Cushion**13%
**Advertised Vs Actual Product**9%
**Functionality-Overall**7%
**Comfort-Overall**7%
**Value For Money**2%
**Thickness**2%
**Defective Material/Parts**2%
**Shape/Style**2%
**Stretchability/Expandability/Elasticity**1%
## **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.
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