---
title: "Relleno Para Cojines — $3.4M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/arts-crafts-sewing/relleno-para-cojines"
last_updated: "2026-08-09T23:05:32.388Z"
locale: en
meta:
description: "Niche score 57/100 · $3.4M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $3.4M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Relleno Para Cojines — $3.4M/yr Amazon US Niche (2026) - Flapen"
---
# **relleno para cojines**
**Worth a look**
Shows a $3.4M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 96Growth 20Conversion 87Competition 49Returns 76Price range 81Avg price 79Brand share 36Review moat 23Quality gap 33
**Market size**
**Incredible****$3.4M**
$3.4M/yr · 2.0M searches
**Conversion**
**Great****10.0%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$5.42–$58.85**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$16.77**
avg listing price — sweet spot $15–$100
**Returns**
**Great****2.0%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****56%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****7,039.63**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-9.5%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, relleno para cojines is a $3.4M/yr Amazon United States market (2.0M searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Worth a look — 57/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **relleno para cojines market data**
- **Units sold / yr**
- **200K–250K**
- avg 10,000–12,500/product
- **Revenue / yr**
- **$3.4M–$4.2M**
- units × avg price
- **Conversion rate**
- **10.0%**
- **Avg BSR**
- **#17**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **85%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **147 days**
## **Competition & brand share**
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▲rising
**Sellers**
**75**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**56%**
Top 20: 94%
**Open market**
**14%**
- Poly-Fil55% - Welacer10% - BUTUZE9% - GOMICRAFT6% - Jecqbor3% - Hem Dgpsy2% - Open — no brand owns it (10 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -9.5% search growth over the last 90 days.
60K40KHoliday '24Prime Day '25Spike '25 seasonSepDecMarJunAugNovMarMay
Peak months: Oct, Nov, Dec · busiest ÷ quietest = 13.6×
[**Open Trend **](https://flapen.com/research/us/arts-crafts-sewing/relleno-para-cojines/trend)
## **Top relleno para cojines search terms**
- **polyfill stuffing**358K/yr+3.4%9.3% conv. - **pillow stuffing**337K/yr-9.1%6.2% conv. - **polyfill**260K/yr-33.2%7.1% conv. - **stuffing for stuffed animals**197K/yr-11.4%11.2% conv. - **pillow stuffing for couch pillows**95K/yr-11.4%4.6% conv. - **poly filling stuffing**82K/yr+20.3%8.4% conv. - **poly fil**79K/yr-14.5%7.1% conv. - **polyfil**59K/yr+4.7%8.0% conv. - **relleno para cojines**61K/yr-4.2%1.4% conv. - **pillow filler**57K/yr+15.3%3.0% conv. [**All search terms **](https://flapen.com/research/us/arts-crafts-sewing/relleno-para-cojines/search-terms)
## **Top relleno para cojines 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.
0%4%$135K8%$269K12%$404K16%$538K101001K10K100K 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**Fairfield The Original Poly-Fil Premium Polyester Fiber Fill Soft Pillow Stuffing Stuffing for Stuffed Animals Toys Cloud Decorations and More Machine-Washable Poly-Fil Fiber Fill 32-ounce Bag**Poly-Fil**$12.48**4.8★50,631 rev](https://www.amazon.com/dp/B004ALQ0M2) [2**Poly-Fil Premium Polyester Fiber Fill by Fairfield 50 oz bag**Poly-Fil**$14.88**4.8★2,941 rev](https://www.amazon.com/dp/B0083VN2EE) [3**Poly-fil Fairfield CCDF10 Crafters Choice Dry Packing Fiber Fill 10 Ounce Bag Blue/Orange**Poly-Fil**$7.46**4.8★5,273 rev](https://www.amazon.com/dp/B008QBXMYQ) [4**Fairfield The Original Poly-Fil Premium Polyester Fiber Fill Soft Pillow Stuffing Stuffing for Stuffed Animals Toys Cloud Decorations and More Machine-Washable Poly-Fil Fiber Fill 5 lbs. Box**Poly-Fil**$21.29**4.8★50,631 rev](https://www.amazon.com/dp/B002OUP6JE) [5**Welacer Polyfill Stuffing Fluffy Pillow Stuffing for Stuffed Animals DIY Plush Toys Cushions Cloud Decorations Premium Original White Polyester Filling for Crochet Crafts 2.3lb/36.8oz**Welacer**$16.97**4.7★284 rev](https://www.amazon.com/dp/B0FJVXSYLH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Welacer Added Cotton Polyfill Stuffing 1.1lb/17.6oz Extra Soft Pillow Stuffing Fluffy Fiber Fill for Cushions Stuffed Animals Crochet Toys Crafts & Cloud Decor**Welacer**$12.06**45 rev4mo ago](https://www.amazon.com/dp/B0GQKKKYLX) [**Hem Dgpsy Polyfill Stuffing Fiber Fill 56oz/3.5lbs Safe Pillow Stuffing for Couch Stuffed Animals Cushion Crochet Toys Cloud Decor Crafts White & Clean Polyester Filling Oeko-TEX Certified**Hem Dgpsy**$19.49**88 rev6mo ago](https://www.amazon.com/dp/B0GGGV2JDT) [**Welacer Polyfill Stuffing 3.5oz/100g Premium Polyester Fiber Fill for Stuffed Animals Crochet Toys & DIY Crafts High Resilience Fiberfill Stuffing for Small Projects Machine Washable**Welacer**$6.28**86 rev6mo ago](https://www.amazon.com/dp/B0GD7C7G4F) [**Jecqbor 80oz Soft Polyfill Stuffing Fluffy Pillow Stuffing Filling for Pillow Couch Cushion Cloud Project Stuffed Animal Craft Machine Washable Polyester Fiberfill for Crochet Pet Bed Plushies**Jecqbor**$24.55**131 rev8mo ago](https://www.amazon.com/dp/B0G2WZL4Z2) [**Amazon Basics Square Hypoallergenic Pillow Insert Down Alternative Fiberfill Sofa Bed Couch Decorative Stuffer 20 4-Pack**Amazon Basics**$23.62**1,866 rev9mo ago](https://www.amazon.com/dp/B0F8NCFQP1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Welacer Added Cotton Polyfill Stuffing 1.1lb/17.6oz Extra Soft Pillow Stuffing Fluffy Fiber Fill for Cushions Stuffed Animals Crochet Toys Crafts & Cloud Decor**Welacer**$12.06**4.5★**▲ 400%**](https://www.amazon.com/dp/B0GQKKKYLX) [**Hem Dgpsy Polyfill Stuffing Fiber Fill 56oz/3.5lbs Safe Pillow Stuffing for Couch Stuffed Animals Cushion Crochet Toys Cloud Decor Crafts White & Clean Polyester Filling Oeko-TEX Certified**Hem Dgpsy**$19.49**4.8★**▲ 373%**](https://www.amazon.com/dp/B0GGGV2JDT) [**MIULEE Pillows Inserts Pack of 4 18x18 Inch 100% Virgin Microfiber Filling Throw Pillows for Bed Couch Sofa**MIULEE**$19.77**4.7★**▲ 277%**](https://www.amazon.com/dp/B0FBGR3L75) [**Welacer Polyfill Stuffing 3.5oz/100g Premium Polyester Fiber Fill for Stuffed Animals Crochet Toys & DIY Crafts High Resilience Fiberfill Stuffing for Small Projects Machine Washable**Welacer**$6.28**4.3★**▲ 226%**](https://www.amazon.com/dp/B0GD7C7G4F) [**Jecqbor 80oz Soft Polyfill Stuffing Fluffy Pillow Stuffing Filling for Pillow Couch Cushion Cloud Project Stuffed Animal Craft Machine Washable Polyester Fiberfill for Crochet Pet Bed Plushies**Jecqbor**$24.55**4.6★**▲ 188%**](https://www.amazon.com/dp/B0G2WZL4Z2)
**~~View all trending →~~**
## **What buyers say about relleno para cojines**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“Excellent product”*
**Soft Feel**12%
*“Soft and fluffy”*
**Value For Money**12%
*“Excellent Value”*
**Size-Overall**8%
*“Nice fit”*
**Fluffiness**8%
*“they are fluffy”*
**Advertised Vs Actual Product**8%
*“Better than I expected”*
**Cushion**7%
*“Great for bring couch cushions back to life”*
**Comfort-Overall**4%
*“Comfy and sturdy”*
**Ease Of Use**3%
*“Easy to Use”*
**Efficiency**2%
*“It works great and delivers consistent, reliable results”*
### **What buyers complain about **
**Size-Overall**14%
*“The bag is small”*
**Fluffiness**11%
*“No fluffing whatsoever”*
**Value For Money**10%
*“Not a great price”*
**Advertised Vs Actual Product**8%
*“Very deceiving”*
**Quality-Overall**7%
*“Low quality”*
**Hard Feel**5%
*“I found it very scratchy and rough”*
**Thickness**4%
*“It was not thick”*
**Cushion**4%
*“not enough cushion”*
**Smell**3%
*“Chemical smell”*
**Ease Of Use**2%
*“To firm for me difficult to work with”*
### **Top return reasons **
**Size-Overall**41%
**Advertised Vs Actual Product**10%
**Value For Money**9%
**Cushion**8%
**Material Quality**6%
**Fluffiness**6%
**Quality-Overall**3%
**Color**2%
**Thin**2%
**Functionality-Overall**2%
## **Common questions**
- **Is relleno para cojines profitable to sell on Amazon United States?**
- The niche generates $3.4M/yr across 27 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is -9.5%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the relleno para cojines niche?**
- 16 brands and 75 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in relleno para cojines?**
- Top complaints mined from reviews: Size-Overall, Fluffiness, Value For Money. The return rate is 2.0%.
- **When does demand for relleno para cojines peak?**
- Demand peaks in Oct–Nov–Dec; the busiest month runs 13.6× the quietest.
- **What does it cost to enter the relleno para cojines niche?**
- Listings span $5.42–$58.85; the average listing price is $16.77 (sweet spot $15–$100). The average incumbent carries 7,040 reviews — the moat a new listing must climb.
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