---
title: "Shark Pajamas — $41K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/shark-pajamas"
last_updated: "2026-08-10T03:09:42.306Z"
locale: en
meta:
description: "Niche score 36/100 · $41K/yr market · 97K searches/yr · $22.53 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 36/100 · $41K/yr market · 97K searches/yr · $22.53 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Shark Pajamas — $41K/yr Amazon US Niche (2026) - Flapen"
---
# **shark pajamas**
**Skip it**
High returns (9.6%) — this niche doesn't clear our bar today.
Market size 10Growth 19Conversion 24Competition 25Returns 9Price range 95Avg price 94Brand share 37Review moat 61Quality gap 80
**Price range**
**Incredible****$17.48–$34.66**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$22.53**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,065.79**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****70%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Bad****1.9%**
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**
**Bad****9.6%**
return rate — above 5% kills the launch gate
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
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 ~~](https://flapen.com/research/methodology)
## **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.
10K6KSpike '24Spike '25Prime Day '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Oct, Nov, Dec · busiest ÷ quietest = 8.9×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/shark-pajamas/trend)
## **Top shark pajamas search terms**
- **shark onesie kids**44K/yr-9.9%2.0% conv. - **shark onesie kids 10-12**22K/yr+12.5%3.0% conv. - **kids shark onesie**16K/yr-16.2%1.8% conv. - **shark onesie for kids**4K/yr-9.0%2.8% conv. - **shark onesies for kids**9K/yr-58.4%2.2% conv. - **shark costume kids onesie**2K/yr-42.9%0.0% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/shark-pajamas/search-terms)
## **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.
0%10%$4K20%$8K30%$12K40%$17K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Shark Blanket Kids Shark Onesie for Kid Shark Costume Pajamas Kids Shark Blankets Hoodie Onesies**inkArts**$20.49**4.3★908 rev](https://www.amazon.com/dp/B0CLJ69TZC) [2**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**$18.13**4.5★1,254 rev](https://www.amazon.com/dp/B0CC98BTQJ) [3**Shark Blanket Hoodie Shark Pajamas Kids Sharks Sleeping Bag for Kids (M)**Gudina**$20.03**4.3★1,079 rev](https://www.amazon.com/dp/B0CLZC3VB8) [4**TBGENIUS Shark Blanket Hoodie Onesie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag**TBGENIUS**$17.77**4.0★215 rev](https://www.amazon.com/dp/B0FPVQMTT2) [5**inkArts Shark Blanket Hoodie - Adult Shark Sleeping Bag & Cozy Flannel Hoodie**inkArts**$20.14**4.2★4,782 rev](https://www.amazon.com/dp/B0CH9TWC91)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**TBGENIUS Shark Blanket Hoodie Onesie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag**TBGENIUS**$17.77**215 rev10mo ago](https://www.amazon.com/dp/B0FPVQMTT2) [**LABULA Unisex Children Character Onesie Pajamas Kids Halloween Cosplay Costume/Homewear/Sleepwear**LABULA**$22.78**191 rev1y ago](https://www.amazon.com/dp/B0FCY5PP3C) [**Newleafly Unisex Kids Shark Onesie Pajamas Soft Cozy Animal Onesie Halloween Cosplay Costume**Newleafly**$24.04**15 rev1y ago](https://www.amazon.com/dp/B0F99KGL7T) [**Shark Blanket Hoodie Onesie for Adult Kids Cozy Flannel Throw Wearable Blanket Cartoon Animals Shark Onesie Shark Costume (Pink Large)**ALDWDY**$19.78**147 rev1y ago](https://www.amazon.com/dp/B0DFBVJTPH) [**Deserthome Wearable Whale Blanket Onesie for Adult Costume Super Soft Comfortable Whale Hoodie Blue Shark Kids S**Deserthome**$17.48**232 rev1y ago](https://www.amazon.com/dp/B0DBHJ5SXC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**LABULA Unisex Children Character Onesie Pajamas Kids Halloween Cosplay Costume/Homewear/Sleepwear**LABULA**$22.78**4.5★**▲ 209%**](https://www.amazon.com/dp/B0FCY5PP3C) [**HSCTEK Shark Onesie Costume Kids Baby Pajamas Cosplay Sleepwear Clothes 16**HSCTEK**$29.17**4.7★**▲ 208%**](https://www.amazon.com/dp/B0DB1WDGQC) [**Deserthome Wearable Whale Blanket Onesie for Adult Costume Super Soft Comfortable Whale Hoodie Blue Shark Kids S**Deserthome**$17.48**4.0★**▲ 132%**](https://www.amazon.com/dp/B0DBHJ5SXC) [**TBGENIUS Shark Blanket Hoodie Onesie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag**TBGENIUS**$17.77**4.0★**▲ 89%**](https://www.amazon.com/dp/B0FPVQMTT2) [**Shark Blanket Hoodie Onesie for Adult Kids Cozy Flannel Throw Wearable Blanket Cartoon Animals Shark Onesie Shark Costume (Pink Large)**ALDWDY**$19.78**4.0★**▲ 49%**](https://www.amazon.com/dp/B0DFBVJTPH)
**~~View all trending →~~**
## **What buyers say about shark pajamas**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Gifting Purpose**18%
*“Great gift”*
**Comfort-Overall**16%
*“comfortable”*
**Soft Feel**16%
*“Fabric is soft”*
**Warmth**9%
*“cozy for year round use”*
**Size-Overall**7%
*“Fit well”*
**Quality-Overall**6%
*“Good quality”*
**Value For Money**3%
*“the sale price was right”*
**Advertised Vs Actual Product**3%
*“As described”*
**Material Quality**2%
*“Material stays pretty soft”*
**Fun/Entertainment Experience**2%
*“Its fun, absurd, and surprisingly comfortable”*
### **What buyers complain about **
**Size-Overall**35%
*“Poor fit”*
**Durability**13%
*“it kept tearing”*
**Quality-Overall**8%
*“not well made”*
**Gap/Hole**7%
*“Holes in it”*
**Stitch/Finish/Polish**6%
*“The seams are all coming apart”*
**Advertised Vs Actual Product**3%
*“Product description was way off”*
**Material Quality**2%
*“The material was very cheap”*
**Thin**2%
*“Thin material”*
**Warmth**1%
*“It's very hot”*
**Thickness**1%
*“Thin and not the best quality”*
### **Top return reasons **
**Size-Overall**59%
**Length**14%
**Gap/Hole**5%
**Stitch/Finish/Polish**3%
**Advertised Vs Actual Product**3%
**Material Quality**3%
**Sleeve Fit**2%
**Arm Fit**1%
**Shoulder Fit**1%
**Durability**1%
## **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.
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