---
title: "Cleo De Nile Monster High Costume — $146K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/toys-games/cleo-de-nile-monster-high-costume"
last_updated: "2026-08-08T11:10:06.614Z"
locale: en
meta:
description: "Niche score 36/100 · $146K/yr market · 310K searches/yr · $67.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 36/100 · $146K/yr market · 310K searches/yr · $67.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Cleo De Nile Monster High Costume — $146K/yr Amazon US Niche (2026) - Flapen"
---
# **cleo de nile monster high costume**
**Skip it**
Brand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Market size 32Growth 27Conversion 9Competition 54Returns 57Price range 23Avg price 87Brand share 6Review moat 45Quality gap 40
**Avg price**
**Great****$67.10**
avg listing price — sweet spot $15–$100
**Returns**
**Good****2.7%**
return rate — above 5% kills the launch gate
**Competition**
**Good****53%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****2,022.54**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$146K**
$146K/yr · 310K searches
**Growth**
**Okay****+1.3%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****$10.49–$381.81**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****0.7%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Bad****98%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, cleo de nile monster high costume is a $146K/yr Amazon United States market (310K searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 36/100.
Data updated Jul 31, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **cleo de nile monster high costume market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$201K–$268K**
- units × avg price
- **Conversion rate**
- **0.7%**
- **Avg BSR**
- **#3,598**
- **Page quality**
- **0%**
- **Prime**
- **67%**
- **Sponsored**
- **46%**
- **Out of stock**
- **5.7%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **146 days**
## **Competition & brand share**
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▲rising
**Sellers**
**176**
**Top-5 brand share**
**98%**
Top 20: 100%
**Top-5 click share**
**53%**
Top 20: 97%
**Open market**
**1%**
- Monster High76% - AI ACCESSORY INNOVATIONS12% - Mattel4% - ZAFUL4% - Bencailor2% - Amscan1% - Open — no brand owns it (1 brand, 1%)
## **Demand**
Weekly Amazon search volume, last 30 weeks — +1.3% search growth over the last 90 days.
5K3KSpike '26Prime Day '26Jan '26Feb '26Mar '26Apr '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/us/toys-games/cleo-de-nile-monster-high-costume/trend)
## **Top cleo de nile monster high costume search terms**
- **cleo de nile**61K/yr+12.3%0.8% conv. - **monster high cleo**34K/yr-6.6%1.2% conv. - **monster high dolls cleo**20K/yr+12.1%1.1% conv. - **monster high cleo de nile**19K/yr-5.8%1.2% conv. - **cleo monster high doll**20K/yr-22.1%1.5% conv. - **cleo de nile monster high costume**28K/yr+110.2%0.0% conv. - **cleo de nile doll**25K/yr-2.6%0.6% conv. - **monster high dolls cleo de nile**10K/yr+0.7%1.3% conv. - **cleo de nile monster high doll original**13K/yr-55.8%1.3% conv. - **cleo monster high costume**15K/yr+123.5%0.1% conv. [**All search terms **](https://flapen.com/research/us/toys-games/cleo-de-nile-monster-high-costume/search-terms)
## **Top cleo de nile monster high costume 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%4%$6K8%$12K12%$17K16%$23K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Monster High Cleo De Nile Doll in Golden Blouse and Layered Skirt Includes Pet Cobra Hissette and Accessories Like a Backpack Snack and Scroll**Monster High**$19.70**4.8★2,166 rev](https://www.amazon.com/dp/B0CMGXG262) [2**AI ACCESSORY INNOVATIONS Monster High 4 Piece Backpack Set Clawdeen Wolf Cleo DeNile Dracularua Frankie Stein & Lagoona Blue Bookbag Flip Sequins 16 School Bag Black & Pink**AI ACCESSORY INNOVATIONS**$43.16**4.5★2,898 rev](https://www.amazon.com/dp/B0D3FHBSXY) [3**Monster High Cleo De Nile Doll with Pet Cobra**Monster High**$21.07**4.7★202 rev](https://www.amazon.com/dp/B0FDH2TVNW) [4**Monster High Doll Cleo De Nile with Blue Streaked Hair in Signature Look with Fashion Accessories & Pet Dog Tut**Monster High**$25.04**4.8★4,493 rev](https://www.amazon.com/dp/B09NZT38FQ) [5**Monster High Scary Sweet Birthday Doll Cleo De Nile in Golden Party Dress with Themed Accessories Like Invite Balloon Gift Lipstick and More**Monster High**$17.08**4.8★4,062 rev](https://www.amazon.com/dp/B0DLBWSNZ6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Monster High Self-Scare Secrets Cleo De Nile Doll and Accessories Set with 13 Realistic Surprises Like Pottery Set and Makeup**Monster High**$23.02**71 rev3mo ago](https://www.amazon.com/dp/B0G27W9XKV) [**Monster High Doll Robecca Steam in Blue Blouse and Black Shorts with Pet Penguin Captain Penny and 7 Accessories Like Flying Goggles and Purse**Monster High**$26.15**233 rev6mo ago](https://www.amazon.com/dp/B0FJZYDKX9) [**Monster High Cleo De Nile Doll with Pet Cobra**Monster High**$21.07**202 rev9mo ago](https://www.amazon.com/dp/B0FDH2TVNW) [**Monster High Reel Drama Doll Cleo De Nile Black and White Reproduction Collectible with Doll-Size and Life-Size Posters Horror Flick Theme and Pet**Monster High**$30.44**3,691 rev11mo ago](https://www.amazon.com/dp/B0DMW6S94H) [**Monster High Little Girls Boxy T-Shirt Periwinkle Blue 7-8**Monster High**$16.31**37 rev1y ago](https://www.amazon.com/dp/B0FJJ68SPX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Monster High Self-Scare Secrets Cleo De Nile Doll and Accessories Set with 13 Realistic Surprises Like Pottery Set and Makeup**Monster High**$23.02**4.6★**▲ 383%**](https://www.amazon.com/dp/B0G27W9XKV) [**Monster High Little Girls Boxy T-Shirt Periwinkle Blue 7-8**Monster High**$16.31**4.8★**▲ 315%**](https://www.amazon.com/dp/B0FJJ68SPX) [**AI ACCESSORY INNOVATIONS Monster High 4 Piece Backpack Set Clawdeen Wolf Cleo DeNile Dracularua Frankie Stein & Lagoona Blue Bookbag Flip Sequins 16 School Bag Black & Pink**AI ACCESSORY INNOVATIONS**$43.16**4.5★**▲ 303%**](https://www.amazon.com/dp/B0D3FHBSXY) [**Monster High Doll Robecca Steam in Blue Blouse and Black Shorts with Pet Penguin Captain Penny and 7 Accessories Like Flying Goggles and Purse**Monster High**$26.15**4.8★**▲ 197%**](https://www.amazon.com/dp/B0FJZYDKX9) [**Monster High Cleo de Nile Halloween Costume Deluxe for Girls Large with Included Accessories by Amscan**Amscan**$32.89**1.0★**▲ 132%**](https://www.amazon.com/dp/B07VT57J1Y)
**~~View all trending →~~**
## **What buyers say about cleo de nile monster high costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“The quality of the doll was excellent”*
**Collectibles**12%
*“she adds to the collection”*
**Value For Money**8%
*“Well worth the money”*
**Advertised Vs Actual Product**8%
*“True to the picture”*
**Add-Ons/Attachments**8%
*“Cute accessories”*
**Gifting Purpose**7%
*“Makes a good gift”*
**Design-Overall**7%
*“Its a beautifully designed set with creative accessories”*
**Color**5%
*“The colors really stand out”*
**Fun/Entertainment Experience**5%
*“Great for child's play”*
**Soft Feel**3%
*“The dolls hair is so soft its not rough which helps to brush the dolls hair I also love her blue streaks in her hair and sunglasses”*
### **What buyers complain about **
**Quality-Overall**17%
*“Not well made”*
**Material Quality**17%
*“Ripped after my daughter played tag also it feels like made out of veryyyyyyy cheap plastic”*
**Value For Money**13%
*“Kinda pricey and of course a few days later it's on sale”*
**Color**11%
*“the blue color isn't my favorite”*
**Defective Material/Parts**8%
*“several accessories fallen out”*
**Size-Overall**3%
*“Accessories really small not for all kids ages”*
**Weight Light**2%
*“One small downside is that some of the smaller accessories are lightweight”*
### **Top return reasons **
**Value For Money**18%
**Color**14%
**Length**11%
**Size-Overall**7%
**Defective Material/Parts**7%
**Advertised Vs Actual Product**6%
**Quality-Overall**5%
**Material Quality**4%
**Product Condition**3%
**Adhesion/Stickiness**3%
## **Common questions**
- **Is cleo de nile monster high costume profitable to sell on Amazon United States?**
- The niche generates $146K/yr across 24 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +1.3%. Flapen's verdict: Skip it (36/100).
- **How competitive is the cleo de nile monster high costume niche?**
- 7 brands and 176 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 98% of demand.
- **What do buyers complain about in cleo de nile monster high costume?**
- Top complaints mined from reviews: Quality-Overall, Material Quality, Value For Money. The return rate is 2.7%.
- **What does it cost to enter the cleo de nile monster high costume niche?**
- Listings span $10.49–$381.81; the average listing price is $67.10 (sweet spot $15–$100). The average incumbent carries 2,023 reviews — the moat a new listing must climb.
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