night cap
Skip itSoft demand (-22.3% this quarter) — this niche doesn't clear our bar today.
Brand share
Great57%top-5 brand share — no brand owns this niche
Competition
Great40%top-5 click share — an open shelf
Returns
Good2.1%return rate — above 5% kills the launch gate
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Price range
Good$4.89–$28.23cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$11.49avg listing price — sweet spot $15–$100
Conversion
Okay2.7%search→purchase rate — share of searches ending in a sale
Review moat
Bad8,335.37avg incumbent reviews — the moat a new listing must climb
Market size
Bad$74K$74K/yr · 237K searches
Growth
Bad-22.3%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, night cap is a $74K/yr Amazon United States market (237K searches/yr). The top 5 brands hold 57% of demand. Demand peaks in Dec. Verdict: Skip it — 47/100.
Data updated Jul 13, 2026 · scored weekly · How we score niches
night cap market data
- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- $69K–$92K
- units × avg price
- Conversion rate
- 2.7%
- Avg BSR
- #172
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 35 months
- Avg seller age
- 160 days
Competition & brand share
Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.Brands
31 falling
Sellers
42
Top-5 brand share
57%
Top 20: 91%
Top-5 click share
40%
Top 20: 76%
Open market
39%
- YANIBEST38%
- Doitory6%
- GB Selected5%
- BONNET QUEEN4%
- LULUSILK4%
- PHILIGHTS4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -22.3% search growth over the last 90 days.Peak months: Dec · busiest ÷ quietest = 1.9×
Top night cap search terms
- night cap69K/yr
- satin cap for sleeping17K/yr
- silk lined bonnet15K/yr
- bonnet for short hair13K/yr
- gorro de seda15K/yr
- gorro de satin para dormir16K/yr
- night caps13K/yr
- night cap for women18K/yr
- small satin bonnet8K/yr
- satin sleep caps for women6K/yr
Top night cap 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
YANIBEST Silk Bonnet for Men Women Hair Bonnet for Sleeping Double Layer Satin Bonnets for Black Women Curly Hair Sleep Cap Black
YANIBEST$12.904.5★3,923 rev
YANIBEST Adjustable Satin Bonnet for Sleeping Women Double Layer Hair Wrap Reduce Friction Prevent Frizz Natural Curly Hair Blush Pink
YANIBEST$11.984.4★27,943 rev
YANIBEST Adjustable Satin Bonnet Double Layer Hair Bonnet for Sleeping Bonnets for Women Hats Curly Natural Hair Blush Pink
YANIBEST$12.604.4★16,114 rev
Doitory Satin Silk Bonnet for Sleeping Double Layer Silk Sleep Cap for Men & Women Soft Satin Lined Bonnet for Natural & Curly Hair(Black)
Doitory$9.614.5★2,136 rev
3 Pack Satin Bonnet Silk Hair Bonnet for Sleeping Sleep Bonnets for Women Large Wide Soft Band Sleep Cap for Curly Hair Braids
PHILIGHTS$6.804.4★8,705 rev
Newest
by launch date
CAPLORD Satin Bonnet for Sleeping Silk Sleep Cap Curly Hair Wrap Beanie Adjustable Satin Lined Night Cap Men Women Black
CAPLORD$12.998,842 rev
Eurzom 2 Pcs Mens Night Cap Adjustable Sleeping Caps Striped Pajama Hat with Pom Ball for Daily Costume Party Supplies(Light Blue and White)
Eurzom$14.04299 rev
Silk Bonnet for Women Satin Bonnet for Sleeping Large Sleep Cap with Elastic Tie Band for Curly Hair (Bean Paste Pink)
Confvrter$5.58701 rev
Doitory Satin Silk Bonnet for Sleeping Double Layer Silk Sleep Cap for Men & Women Soft Satin Lined Bonnet for Natural & Curly Hair(Black)
Doitory$9.612,136 rev
ZHENSILK Silk Hair Bonnet for Sleeping Women Men 2Pcs
ZHENSILK$10.422,038 rev
Trending
90-day click momentumCAPLORD Satin Bonnet for Sleeping Silk Sleep Cap Curly Hair Wrap Beanie Adjustable Satin Lined Night Cap Men Women Black
CAPLORD$12.994.3★
Silk Bonnet for Women Satin Bonnet for Sleeping Large Sleep Cap with Elastic Tie Band for Curly Hair (Bean Paste Pink)
Confvrter$5.584.4★
LULUSILK 100% Mulberry Silk Bonnet for Sleeping Women and Men No More Frizzy Tangled Hair Real Silk Sleep Cap for Curly Hair Black Pack of 1
LULUSILK$15.424.3★
LULUSILK Mulberry Silk Bonnet for Sleeping Women No More Frizzy Tangled Hair Stay On All Night Silk Hair Wrap for Sleeping with Adjustable Strap Silk Sleep Cap for Women and Men Pink Pack of 1
LULUSILK$15.294.3★
YANIBEST Silk Bonnet for Men Women Hair Bonnet for Sleeping Double Layer Satin Bonnets for Black Women Curly Hair Sleep Cap Black
YANIBEST$12.904.5★
What buyers say about night cap
What buyers praise and complain about, mined from review topics.What buyers love
“Comfortable to wear”
“It was also very affordable for the quality”
“The fit was comfortable”
“keeps my hair soft”
“Good value for money”
“Arrived as described”
“Great color choices”
“Good Material”
“Comfortable and adjustable”
“easy fix”
What buyers complain about
“Does not fit”
“Slides off”
“Cheap and thin material”
“the quality is inconsistent”
“Falls off”
“Not the most comfortable”
“False Advertising”
“Elastic Band is Way Too Tight”
“Doesn't work as intended”
“it smells like rotten milk:'”
Top return reasons
Common questions
- Is night cap profitable to sell on Amazon United States?
- The niche generates $74K/yr across 46 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is -22.3%. Flapen's verdict: Skip it (47/100).
- How competitive is the night cap niche?
- 31 brands and 42 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 57% of demand.
- What do buyers complain about in night cap?
- Top complaints mined from reviews: Size-Overall, Grip, Material Quality. The return rate is 2.1%.
- When does demand for night cap peak?
- Demand peaks in Dec; the busiest month runs 1.9× the quietest.
- What does it cost to enter the night cap niche?
- Listings span $4.89–$28.23; the average listing price is $11.49 (sweet spot $15–$100). The average incumbent carries 8,335 reviews — the moat a new listing must climb.