shark pajamas
Skip itHigh returns (9.6%) — this niche doesn't clear our bar today.
Price range
Incredible$17.48–$34.66cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$22.53avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Review moat
Good1,065.79avg incumbent reviews — the moat a new listing must climb
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
Growth
Bad-11.7%90-day search growth — must beat 0% to launch
Market size
Bad$41K$41K/yr · 97K searches
Returns
Bad9.6%return rate — above 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, shark pajamas is a $41K/yr Amazon United States market (97K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 36/100.
Data updated Jul 17, 2026 · scored weekly · How we score niches
shark pajamas market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $45K–$56K
- units × avg price
- Conversion rate
- 1.9%
- Avg BSR
- #436
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 20.5%
- Avg brand age
- 36 months
- Avg seller age
- 201 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
12 falling
Sellers
16
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
12%
- inkArts41%
- Touchat14%
- Gudina13%
- TBGENIUS10%
- ALDWDY5%
- JCJ5%
- Open — no brand owns it (6 brands, 12%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -11.7% search growth over the last 90 days.Peak months: Oct, Nov, Dec · busiest ÷ quietest = 8.9×
Top shark pajamas search terms
- shark onesie kids44K/yr
- shark onesie kids 10-1222K/yr
- kids shark onesie16K/yr
- shark onesie for kids4K/yr
- shark onesies for kids9K/yr
- shark costume kids onesie2K/yr
Top shark pajamas 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 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Shark Blanket Kids Shark Onesie for Kid Shark Costume Pajamas Kids Shark Blankets Hoodie Onesies
inkArts$20.494.3★908 rev
Touchat Shark Blanket for Adult & Kids Super Soft Cozy Flannel Throw Wearable Blanket Cartoon Animals Shark Onesie Hoodie Sleeping Bag Cosplay Shark Costume Blanket Gifts for Shark Lovers (Blue M)
Touchat$18.134.5★1,254 rev
Shark Blanket Hoodie Shark Pajamas Kids Sharks Sleeping Bag for Kids (M)
Gudina$20.034.3★1,079 rev
TBGENIUS Shark Blanket Hoodie Onesie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag
TBGENIUS$17.774.0★215 rev
inkArts Shark Blanket Hoodie - Adult Shark Sleeping Bag & Cozy Flannel Hoodie
inkArts$20.144.2★4,782 rev
Newest
by launch dateTBGENIUS Shark Blanket Hoodie Onesie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag
TBGENIUS$17.77215 rev
LABULA Unisex Children Character Onesie Pajamas Kids Halloween Cosplay Costume/Homewear/Sleepwear
LABULA$22.78191 rev
Newleafly Unisex Kids Shark Onesie Pajamas Soft Cozy Animal Onesie Halloween Cosplay Costume
Newleafly$24.0415 rev
Shark Blanket Hoodie Onesie for Adult Kids Cozy Flannel Throw Wearable Blanket Cartoon Animals Shark Onesie Shark Costume (Pink Large)
ALDWDY$19.78147 rev
Deserthome Wearable Whale Blanket Onesie for Adult Costume Super Soft Comfortable Whale Hoodie Blue Shark Kids S
Deserthome$17.48232 rev
Trending
90-day click momentumLABULA Unisex Children Character Onesie Pajamas Kids Halloween Cosplay Costume/Homewear/Sleepwear
LABULA$22.784.5★
HSCTEK Shark Onesie Costume Kids Baby Pajamas Cosplay Sleepwear Clothes 16
HSCTEK$29.174.7★
Deserthome Wearable Whale Blanket Onesie for Adult Costume Super Soft Comfortable Whale Hoodie Blue Shark Kids S
Deserthome$17.484.0★
TBGENIUS Shark Blanket Hoodie Onesie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag
TBGENIUS$17.774.0★
Shark Blanket Hoodie Onesie for Adult Kids Cozy Flannel Throw Wearable Blanket Cartoon Animals Shark Onesie Shark Costume (Pink Large)
ALDWDY$19.784.0★
What buyers say about shark pajamas
What buyers praise and complain about, mined from review topics.What buyers love
“Great gift”
“comfortable”
“Fabric is soft”
“cozy for year round use”
“Fit well”
“Good quality”
“the sale price was right”
“As described”
“Material stays pretty soft”
“Its fun, absurd, and surprisingly comfortable”
What buyers complain about
“Poor fit”
“it kept tearing”
“not well made”
“Holes in it”
“The seams are all coming apart”
“Product description was way off”
“The material was very cheap”
“Thin material”
“It's very hot”
“Thin and not the best quality”
Top return reasons
Common questions
- Is shark pajamas profitable to sell on Amazon United States?
- The niche generates $41K/yr across 14 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -11.7%. Flapen's verdict: Skip it (36/100).
- How competitive is the shark pajamas niche?
- 12 brands and 16 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in shark pajamas?
- Top complaints mined from reviews: Size-Overall, Durability, Quality-Overall. The return rate is 9.6% — above our launch gate.
- When does demand for shark pajamas peak?
- Demand peaks in Oct–Nov–Dec; the busiest month runs 8.9× the quietest.
- What does it cost to enter the shark pajamas niche?
- Listings span $17.48–$34.66; the average listing price is $22.53 (sweet spot $15–$100). The average incumbent carries 1,066 reviews — the moat a new listing must climb.