---
title: "Denneroll — $156K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/denneroll"
last_updated: "2026-08-11T09:04:32.977Z"
locale: en
meta:
description: "Niche score 40/100 · $156K/yr market · 135K searches/yr · $21.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $156K/yr market · 135K searches/yr · $21.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Denneroll — $156K/yr Amazon US Niche (2026) - Flapen"
---
# **denneroll**
**Skip it**
Brand-locked demand (top 5 brands take 99% of clicks) — this niche doesn't clear our bar today.
Market size 33Growth 24Conversion 61Competition 16Returns 54Price range 76Avg price 92Brand share 4Review moat 13Quality gap 75
**Avg price**
**Great****$21.64**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.39–$26.88**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Good****5.4%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Good****2.8%**
return rate — above 5% kills the launch gate
**Market size**
**Okay****$156K**
$156K/yr · 135K searches
**Growth**
**Bad****-1.4%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****80%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****25,916.91**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****99%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, denneroll is a $156K/yr Amazon United States market (135K searches/yr). The top 5 brands hold 99% of demand. Verdict: Skip it — 40/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **denneroll market data**
- **Units sold / yr**
- **6K–8K**
- avg 500–750/product
- **Revenue / yr**
- **$130K–$173K**
- units × avg price
- **Conversion rate**
- **5.4%**
- **Avg BSR**
- **#27**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **38 months**
- **Avg seller age**
- **186 days**
## **Competition & brand share**
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▲rising
**Sellers**
**14**
**Top-5 brand share**
**99%**
Top 20: 100%
**Top-5 click share**
**80%**
Top 20: 100%
**Open market**
**0%**
- WANYIDA50% - Lumia Wellness20% - RESTCLOUD12% - StrongTek12% - Core Products5% - POUYRBA2%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -1.4% search growth over the last 90 days.
4K3KSpike '24Holiday '24Prime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/denneroll/trend)
## **Top denneroll search terms**
- **denneroll**49K/yr-6.2%4.4% conv. - **denneroll cervical neck**22K/yr-8.7%5.5% conv. - **cervical denneroll**12K/yr+9.2%4.4% conv. - **neck wedge**12K/yr+11.9%4.4% conv. - **neck block**5K/yr+43.8%2.6% conv. - **denneroll cervical**5K/yr-5.9%1.8% conv. - **cervical wedge**5K/yr+12.6%6.1% conv. - **deneroll neck cervical**4K/yr-17.1%5.9% conv. - **denneroll neck**4K/yr-9.9%3.5% conv. - **neck wedge chiropractic**3K/yr-10.7%3.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/denneroll/search-terms)
## **Top denneroll 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%10%$16K20%$31K30%$47K40%$63K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Neck Stretcher Exerciser Cervical Traction Device for Neck Pain Relief and Cervical Spine Alignment. Portable Neck Traction Exerciser for Home/Office Neck and Shoulder Relaxer. (20-25 Pounds)**WANYIDA**$24.11**4.0★380 rev](https://www.amazon.com/dp/B09Q8XLD2F) [2**WANYIDA Neck and Shoulder Relaxer Neck Stretcher Chiropractic Pillows for Pain Relief Cervical Traction Device for Cervical Spine AlignmentFSA HSA Eligible**WANYIDA**$24.70**4.4★1,287 rev](https://www.amazon.com/dp/B096X457Z4) [3**Lumia Wellness Cervical Orthotic Traction Block Firm Spinal & Neck Alignment Cervical Traction Device & Neck Stretcher**Lumia Wellness**$26.68**4.4★2,196 rev](https://www.amazon.com/dp/B07H7VXNSH) [4**StrongTek Cervical Neck Wedge Firm Foam Orthotic Block for Neck Curve Restoration Support for Posture Correction Headache Relief and Cervical Traction at Home**StrongTek**$21.23**4.3★888 rev](https://www.amazon.com/dp/B08BRG58WJ) [5**RESTCLOUD Neck and Shoulder Relaxer Cervical Traction Device for TMJ Pain Relief and Cervical Spine Alignment Chiropractic Pillow Neck Stretcher (Black)**RESTCLOUD**$18.84**4.2★92,876 rev](https://www.amazon.com/dp/B094MQVXMB)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Yoga Blocks 2 Pcs 9x6x3 Yoga Brick Foam Blocks EVA Foam Block Props Accessories for Pilates Stretching and Meditation (Grey Large)**POUYRBA**$11.39**400 rev1y ago](https://www.amazon.com/dp/B0DYCW3SFJ) [**WANYIDA Neck Stretcher Chiropractic Pillows for Neck Pain Relief Cervical Traction Device for Cervical Spine Alignment Neck and Shoulder Relaxer Cervical Orthotic Traction Block**WANYIDA**$22.86**130 rev4y ago](https://www.amazon.com/dp/B0B3DCTWST) [**Neck Stretcher Exerciser Cervical Traction Device for Neck Pain Relief and Cervical Spine Alignment. Portable Neck Traction Exerciser for Home/Office Neck and Shoulder Relaxer. (20-25 Pounds)**WANYIDA**$24.11**380 rev4y ago](https://www.amazon.com/dp/B09Q8XLD2F) [**Neck Stretcher Exerciser FSA/HSA Eligible Cervical Traction Device for Neck Pain Relief and Spine Alignment. Portable Neck Traction Exerciser for Home/Office Neck and Shoulder Relaxer Easy to Pull.**WANYIDA**$23.91**380 rev4y ago](https://www.amazon.com/dp/B09JW8SWLY) [**WANYIDA Neck and Shoulder Relaxer Neck Stretcher Chiropractic Pillows for Pain Relief Cervical Traction Device for Cervical Spine AlignmentFSA HSA Eligible**WANYIDA**$24.70**1,287 rev5y ago](https://www.amazon.com/dp/B096X457Z4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Yoga Blocks 2 Pcs 9x6x3 Yoga Brick Foam Blocks EVA Foam Block Props Accessories for Pilates Stretching and Meditation (Grey Large)**POUYRBA**$11.39**4.8★**▲ 206%**](https://www.amazon.com/dp/B0DYCW3SFJ) [**Neck Stretcher Exerciser Cervical Traction Device for Neck Pain Relief and Cervical Spine Alignment. Portable Neck Traction Exerciser for Home/Office Neck and Shoulder Relaxer. (20-25 Pounds)**WANYIDA**$24.11**4.0★**▲ 158%**](https://www.amazon.com/dp/B09Q8XLD2F) [**Neck Stretcher Exerciser FSA/HSA Eligible Cervical Traction Device for Neck Pain Relief and Spine Alignment. Portable Neck Traction Exerciser for Home/Office Neck and Shoulder Relaxer Easy to Pull.**WANYIDA**$23.91**4.0★**▲ 69%**](https://www.amazon.com/dp/B09JW8SWLY) [**RESTCLOUD Neck and Shoulder Relaxer Cervical Traction Device for TMJ Pain Relief and Cervical Spine Alignment Chiropractic Pillow Neck Stretcher (Black)**RESTCLOUD**$18.84**4.2★**▲ 35%**](https://www.amazon.com/dp/B094MQVXMB) [**WANYIDA Neck and Shoulder Relaxer Neck Stretcher Chiropractic Pillows for Pain Relief Cervical Traction Device for Cervical Spine AlignmentFSA HSA Eligible**WANYIDA**$24.70**4.4★**— 0%**](https://www.amazon.com/dp/B096X457Z4)
**~~View all trending →~~**
## **What buyers say about denneroll**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Stretchability/Expandability/Elasticity**12%
*“You can feel the stretch”*
**Quality-Overall**10%
*“Seems well made”*
**Value For Money**8%
*“Good value”*
**Efficiency**7%
*“Effective”*
**Advertised Vs Actual Product**7%
*“As advertised”*
**Muscle Pain Relief**6%
*“pressure that helps relax tight muscles”*
**Ease Of Use**6%
*“Easy to use”*
**Posture Enhancer**4%
*“Enhances neck posture”*
**Comfort-Overall**4%
*“Amazing comfort”*
**Size-Overall**2%
*“This fits well”*
### **What buyers complain about **
**Comfort-Overall**15%
*“Not super comfortable”*
**Pain Relief-Overall**13%
*“Painful”*
**Hard Feel**13%
*“Extremely hard”*
**Stiffness**5%
*“I started noticing a tighter, stiff back”*
**Size-Overall**4%
*“Too small”*
**Flexibility**4%
*“its not firm”*
**Functionality-Overall**4%
*“just didn't help”*
**Sleep Quality**3%
*“DO NOT use the device for sleeping”*
**Stretchability/Expandability/Elasticity**2%
*“Too difficult to stretch out arms”*
**Value For Money**2%
*“No worth it”*
### **Top return reasons **
**Functionality-Overall**19%
**Comfort-Overall**16%
**Advertised Vs Actual Product**9%
**Size-Overall**9%
**Hard Feel**7%
**Pain Relief-Overall**7%
**Stretchability/Expandability/Elasticity**5%
**Joint Pain**5%
**Value For Money**4%
**Material Quality**3%
## **Common questions**
- **Is denneroll profitable to sell on Amazon United States?**
- The niche generates $156K/yr across 11 tracked products. 90-day search growth is -1.4%. Flapen's verdict: Skip it (40/100).
- **How competitive is the denneroll niche?**
- 6 brands and 14 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 99% of demand.
- **What do buyers complain about in denneroll?**
- Top complaints mined from reviews: Comfort-Overall, Pain Relief-Overall, Hard Feel. The return rate is 2.8%.
- **When does demand for denneroll peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the denneroll niche?**
- Listings span $11.39–$26.88; the average listing price is $21.64 (sweet spot $15–$100). The average incumbent carries 25,917 reviews — the moat a new listing must climb.
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