---
title: "nightcap — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/nightcap"
last_updated: "2026-07-14T01:49:39.508Z"
locale: en
meta:
  description: "soft demand (-32.7% this quarter) — nightcap doesn't clear our bar today."
  "og:description": "soft demand (-32.7% this quarter) — nightcap doesn't clear our bar today."
  "og:title": "nightcap — Niche Verdict: Skip it (46/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **nightcap**

**Skip it**

Soft demand (-32.7% this quarter) — this niche doesn't clear our bar today.

Market size 25Growth 9Conversion 44Competition 51Returns 72Price range 53Avg price 54Brand share 72Review moat 25Quality gap 75

**Quality gap**

**Great****4.3★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Good****62%**

top-5 brand share — brands hold most of the demand

**Returns**

**Good****2.1%**

return rate — above 6% kills the launch gate

**Avg price**

**Good****$12.46**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$6.00–$24.98**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Competition**

**Good****54%**

top-5 click share — leaders hold, buyers still browse

**Conversion**

**Okay****3.5%**

search→purchase rate — share of searches ending in a sale

**Market size**

**Bad****$99K**

$99K/yr · 228K searches

**Review moat**

**Bad****4,028**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Bad****-32.7%**

90-day search growth — must beat 0% to launch

## **Competition**

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**19 **▼falling

**Sellers**

**29**

**Top-5 brand share**

**62%**

**Open market**

**33%**

- GB Selected22% - Headshion19% - Doitory8% - Lee Valley6% - Syhood6% - PARISBELLA5%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$10K20%$20K30%$30K40%$40K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 26 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Silk Satin Lined Bonnet Sleep Cap - Adjustable Stay on All Night Hair Wrap Cover Slouchy Beanie for Curly Protection Women and Men Solid Black](https://m.media-amazon.com/images/I/31QvVordbgL.jpg)**Silk Satin Lined Bonnet Sleep Cap - Adjustable Stay on All Night Hair Wrap Cover Slouchy Beanie for Curly Protection Women and Men Solid Black**GB Selected**$13.97**4.3★10,104 rev](https://www.amazon.com/dp/B08KY9S45R) [2![100% Cotton Skull Caps Beanie Sleeping Hats for Men Women Black Grey](https://m.media-amazon.com/images/I/513yylG-46L.jpg)**100% Cotton Skull Caps Beanie Sleeping Hats for Men Women Black Grey**Headshion**$8.15**4.4★11,799 rev](https://www.amazon.com/dp/B07P1FXRYV) [3![100% Cotton Skull Caps Beanie Sleeping Hats for Men Women 2-Pack Black](https://m.media-amazon.com/images/I/31HOuZ0OcCL.jpg)**100% Cotton Skull Caps Beanie Sleeping Hats for Men Women 2-Pack Black**Headshion**$8.49**4.4★11,799 rev](https://www.amazon.com/dp/B0DMF4XLZV) [4![Doitory Satin Silk Bonnet for Sleeping Double Layer Silk Sleep Cap for Men & Women Soft Satin Lined Bonnet for Natural & Curly Hair(Black)](https://m.media-amazon.com/images/I/41GBOeVmfxL.jpg)**Doitory Satin Silk Bonnet for Sleeping Double Layer Silk Sleep Cap for Men & Women Soft Satin Lined Bonnet for Natural & Curly Hair(Black)**Doitory**$9.61**4.5★2,136 rev](https://www.amazon.com/dp/B0DMSDC5MM) [5![Syhood 6 Pieces Men Skull Caps Cotton Beanies Sleep Hats Multifunctional Helmet Liner Cap for Men and Women (Vintage Colors)](https://m.media-amazon.com/images/I/41kGogi7+ML.jpg)**Syhood 6 Pieces Men Skull Caps Cotton Beanies Sleep Hats Multifunctional Helmet Liner Cap for Men and Women (Vintage Colors)**Syhood**$16.20**4.4★1,442 rev](https://www.amazon.com/dp/B08NCSX5DN)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Stocking Wave Caps for Men Adult Stretchy Nylon Skull Cap 10/20/50Pcs Wide Anti-Slip Breathable Sleep Waves Cap for Man Women (Black-6)](https://m.media-amazon.com/images/I/41a--4nmB5L.jpg)**Stocking Wave Caps for Men Adult Stretchy Nylon Skull Cap 10/20/50Pcs Wide Anti-Slip Breathable Sleep Waves Cap for Man Women (Black-6)**Vidroxin**$6.71**34 rev6mo ago](https://www.amazon.com/dp/B0G7ZL4WF6) [![4Pcs Wave Cap for Men Breathable Sleep Cap Men Skull Hat Multifunctional Sweat Absorbent Liner Skull Caps Comfortable for Night Sleeping & Sport Use](https://m.media-amazon.com/images/I/41NFGape8XL.jpg)**4Pcs Wave Cap for Men Breathable Sleep Cap Men Skull Hat Multifunctional Sweat Absorbent Liner Skull Caps Comfortable for Night Sleeping & Sport Use**ValueBargain**$7.69**11 rev7mo ago](https://www.amazon.com/dp/B0G58CTGJM) [![CAPLORD Satin Bonnet for Sleeping Silk Sleep Cap Curly Hair Wrap Beanie Adjustable Satin Lined Night Cap Men Women Black](https://m.media-amazon.com/images/I/41harjZK+OL.jpg)**CAPLORD Satin Bonnet for Sleeping Silk Sleep Cap Curly Hair Wrap Beanie Adjustable Satin Lined Night Cap Men Women Black**CAPLORD**$12.99**8,842 rev10mo ago](https://www.amazon.com/dp/B0FQWDTBST) [![Doitory Satin Silk Bonnet Skull Caps for Men Women Soft Adjuastable Satin Lined Beanie Winter Hat Hair Cover for Sleeping](https://m.media-amazon.com/images/I/31LqNTZG23L.jpg)**Doitory Satin Silk Bonnet Skull Caps for Men Women Soft Adjuastable Satin Lined Beanie Winter Hat Hair Cover for Sleeping**Doitory**$10.86**40 rev10mo ago](https://www.amazon.com/dp/B0FNMVLZK8) [![SUNMECI Skull Cap for Men Women - Soft Stretchy Chemo Hair Loss Day & Night Sleep Hat for Summer & Winter Running Cycling Dark Heather Gray](https://m.media-amazon.com/images/I/31Z5eZdSOZL.jpg)**SUNMECI Skull Cap for Men Women - Soft Stretchy Chemo Hair Loss Day & Night Sleep Hat for Summer & Winter Running Cycling Dark Heather Gray**SUNMECI**$11.96**120 rev11mo ago](https://www.amazon.com/dp/B0FJFGHCTV)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Stocking Wave Caps for Men Adult Stretchy Nylon Skull Cap 10/20/50Pcs Wide Anti-Slip Breathable Sleep Waves Cap for Man Women (Black-6)](https://m.media-amazon.com/images/I/41a--4nmB5L.jpg)**Stocking Wave Caps for Men Adult Stretchy Nylon Skull Cap 10/20/50Pcs Wide Anti-Slip Breathable Sleep Waves Cap for Man Women (Black-6)**Vidroxin**$6.71**4.2★**▲ 119%**](https://www.amazon.com/dp/B0G7ZL4WF6) [![2 Pack Silk Satin Hair Bonnet for Men Adjustable Stay-On Sleep Cap Beanie for Curly Hair Soft Breathable Night Hat for All Types](https://m.media-amazon.com/images/I/41Fqp7RWyiL.jpg)**2 Pack Silk Satin Hair Bonnet for Men Adjustable Stay-On Sleep Cap Beanie for Curly Hair Soft Breathable Night Hat for All Types**Srevela**$12.39**4.4★**▲ 109%**](https://www.amazon.com/dp/B0FFMN5HD5) [![100% Cotton Skull Caps Beanie Sleeping Hats for Men Women 2-Pack Black](https://m.media-amazon.com/images/I/31HOuZ0OcCL.jpg)**100% Cotton Skull Caps Beanie Sleeping Hats for Men Women 2-Pack Black**Headshion**$8.49**4.4★**▲ 100%**](https://www.amazon.com/dp/B0DMF4XLZV) [![CAPLORD Satin Bonnet for Sleeping Silk Sleep Cap Curly Hair Wrap Beanie Adjustable Satin Lined Night Cap Men Women Black](https://m.media-amazon.com/images/I/41harjZK+OL.jpg)**CAPLORD Satin Bonnet for Sleeping Silk Sleep Cap Curly Hair Wrap Beanie Adjustable Satin Lined Night Cap Men Women Black**CAPLORD**$12.99**4.3★**▲ 98%**](https://www.amazon.com/dp/B0FQWDTBST) [![4Pcs Wave Cap for Men Breathable Sleep Cap Men Skull Hat Multifunctional Sweat Absorbent Liner Skull Caps Comfortable for Night Sleeping & Sport Use](https://m.media-amazon.com/images/I/41NFGape8XL.jpg)**4Pcs Wave Cap for Men Breathable Sleep Cap Men Skull Hat Multifunctional Sweat Absorbent Liner Skull Caps Comfortable for Night Sleeping & Sport Use**ValueBargain**$7.69**3.3★**▲ 94%**](https://www.amazon.com/dp/B0G58CTGJM)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 101 weeks — -32.7% search growth over the last 90 days.

9K7KSpike '24Spike '25Holiday '25 seasonSepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Nov, Dec · busiest ÷ quietest = 4.0×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Comfort-Overall**16%

*“Comfortable and light weight”*

**Quality-Overall**13%

*“It was also very affordable for the quality”*

**Size-Overall**12%

*“Classy fit”*

**Soft Feel**12%

*“Silky smooth”*

**Material Quality**5%

*“Good material”*

**Value For Money**4%

*“Good Value”*

**Color**3%

*“the color is accurate”*

**Advertised Vs Actual Product**3%

*“as advertised”*

**Ease Of Use**2%

*“Easy to use”*

**Weight Light**2%

*“Lightweight,”*

### **What buyers complain about **

**Size-Overall**23%

*“Doesnt fit”*

**Grip**6%

*“Doesnt stay in place”*

**Advertised Vs Actual Product**5%

*“Misleading information”*

**Material Quality**5%

*“Cheap material”*

**Smell**4%

*“Reeks of chemical smell”*

**Comfort-Overall**3%

*“Not the most comfortable”*

**Durability**3%

*“It just fell off”*

**Quality-Overall**3%

*“quality was lowered”*

**Functionality-Overall**2%

*“Doesnt stay on”*

**Stretchability/Expandability/Elasticity**2%

*“Isnt very stretchy”*

### **Top return reasons **

**Size-Overall**49%

**Material Quality**8%

**Advertised Vs Actual Product**7%

**Functionality-Overall**6%

**Comfort-Overall**4%

**Value For Money**2%

**Grip**2%

**Color**1%

**Length**1%

**Quality-Overall**1%