---
title: "Little Mermaid Costume Toddler — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/little-mermaid-costume-toddler"
last_updated: "2026-08-12T12:19:50.601Z"
locale: en
meta:
description: "Amazon product research for little mermaid costume toddler: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for little mermaid costume toddler: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Little Mermaid Costume Toddler — Amazon US Product Research"
---
# **Little Mermaid Costume Toddler**
**Skip it**
Weak search conversion (0.5%) — this niche doesn't clear our bar today.
Market size 13Growth 12Conversion 6Competition 64Returns 22Price range 85Avg price 95Brand share 76Review moat 44Quality gap 37
**Avg price**
**Incredible****$25.81**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.65–$53.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Great****59%**
top-5 brand share — no brand owns this niche
**Competition**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****2,076**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Returns**
**Bad****5.8%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$51K**
$51K/yr · 417K searches
**Growth**
**Bad****-25.9%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****0.5%**
search→purchase rate — share of searches ending in a sale
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
## **Is little mermaid costume toddler profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, little mermaid costume toddler is a $51K/yr Amazon United States market (417K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 39/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **little mermaid costume toddler market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **3K–4K**
- avg 0–100/product
- **Revenue / yr**
- **$77K–$103K**
- units × avg price
- **Conversion rate**
- **0.5%**
- **Avg BSR**
- **#675**
- **Page quality**
- **0%**
- **Prime**
- **92%**
- **Sponsored**
- **92%**
- **Out of stock**
- **19.9%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **175 days**
## **Competition: brands, sellers & click share**
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▼falling
**Sellers**
**29**
**Top-5 brand share**
**59%**
Top 20: 99%
**Top-5 click share**
**46%**
Top 20: 81%
**Open market**
**35%**
- Fylytota19% - Fun Costumes13% - Disney12% - Joy Join9% - iTVTi6% - Yosbabe6%
## **little mermaid costume toddler demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -25.9% search growth over the last 90 days.
40K30KSpike '24Spike '25 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 11.4×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/little-mermaid-costume-toddler/trend)
## **Top little mermaid costume toddler search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **ariel costume for girls**216K/yr-44.5%0.6% conv. - **ariel costume**82K/yr+18.5%0.3% conv. - **the little mermaid costume**14K/yr-31.0%0.1% conv. - **disfraz de ariel para nia**6K/yr+6.7%0.1% conv. - **little mermaid costume toddler**17K/yr-2.8%0.5% conv. - **ariel mermaid costume**7K/yr-6.6%0.1% conv. - **little mermaid costumes**6K/yr+8.4%0.1% conv. - **ariel costume 5t**5K/yr+18.8%1.0% conv. - **girls ariel costume**6K/yr-11.4%0.7% conv. - **mermaid costume 2t**5K/yr+28.6%0.5% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/little-mermaid-costume-toddler/search-terms)
## **Top little mermaid costume toddler products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$3K10%$5K15%$8K20%$10K101001K10K100K 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**Fylytota Girls Mermaid Dress Little Mermaid Costume Princess Sequin Sling Tutu Dress for Toddler Kids Birthday Party Turquoise**Fylytota**$25.12**4.8★39 rev](https://www.amazon.com/dp/B0FKYDG2JJ) [2**Fun Costumes - Disney The Little Mermaid Ariel Costume Princess of the Sea for Fantasy Cosplay Beach Theme Party & Dress Up Small**Fun Costumes**$53.12**4.2★78 rev](https://www.amazon.com/dp/B0B77ZDJ9Z) [3**Joy Join Little Mermaid Costume for Little Girls Dress Up 3T 4T**Joy Join**$23.12**4.5★3,973 rev](https://www.amazon.com/dp/B07VK7PK7W) [4**iTVTi Little Girls Mermaid Costume Princess Dress Up Ariel Outfits with Accessories Wig Birthday Party Halloween Cosplay Blue 4-5 Years(Tag 120)**iTVTi**$25.71**4.6★674 rev](https://www.amazon.com/dp/B0C7D2XM77) [5**Disney Girls Princess Fantasy Gown Nightgown AURORA 6**Disney**$20.02**4.8★21,893 rev](https://www.amazon.com/dp/B0B98RJW8P)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Disney Little Mermaid Girls Princess Dress Nightgown Fantasy Gown Soft & Cute Pajamas for Kids**Disney**$25.48**21,893 rev2mo ago](https://www.amazon.com/dp/B0FV3WDQ46) [**G.C Mermaid Costume for Girls Ages 2-7 Blue Dress Up Set with Wig Crown Wand Princess Party Halloween Birthday Cosplay Outfit**G.C**$27.78**32 rev6mo ago](https://www.amazon.com/dp/B0G8LJX4NV) [**Disney Princess Ariel Toddler Girl Dresses 2 Pack Purple Green Ruffle Sleeve Costume & Pink Sleeveless Sundress Set Birthday Summer Outfits Clothes 3T**Disney**$28.02**424 rev7mo ago](https://www.amazon.com/dp/B0G6KD4J9S) [**Disney Store Official Princess Ariel Halloween Costume for Kids - Disney Princess Dresses for Girls - Dress up Clothes for Pretend Play - The Little Mermaid Costume - Size 4**Disney Store**$48.52**128 rev10mo ago](https://www.amazon.com/dp/B0FMZYKBWN) [**Fylytota Girls Mermaid Dress Little Mermaid Costume Princess Sequin Sling Tutu Dress for Toddler Kids Birthday Party Turquoise**Fylytota**$25.12**39 rev11mo ago](https://www.amazon.com/dp/B0FKYDG2JJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Mermaid Princess Costume Princess Dress Up Blue Ball Gown with Hairbow for Adult Women (XS)**Saniplaycos**$35.15**3.9★**▲ 494%**](https://www.amazon.com/dp/B0DN1G3196) [**Disney Little Mermaid Girls Princess Dress Nightgown Fantasy Gown Soft & Cute Pajamas for Kids**Disney**$25.48**4.8★**▲ 487%**](https://www.amazon.com/dp/B0FV3WDQ46) [**Fylytota Girls Mermaid Dress Little Mermaid Costume Princess Sequin Sling Tutu Dress for Toddler Kids Birthday Party Turquoise**Fylytota**$25.12**4.8★**▲ 467%**](https://www.amazon.com/dp/B0FKYDG2JJ) [**Disney Princess Ariel Toddler Girl Dresses 2 Pack Purple Green Ruffle Sleeve Costume & Pink Sleeveless Sundress Set Birthday Summer Outfits Clothes 3T**Disney**$28.02**4.8★**▲ 463%**](https://www.amazon.com/dp/B0G6KD4J9S) [**G.C Mermaid Costume for Girls Ages 2-7 Blue Dress Up Set with Wig Crown Wand Princess Party Halloween Birthday Cosplay Outfit**G.C**$27.78**4.3★**▲ 452%**](https://www.amazon.com/dp/B0G8LJX4NV)
**~~View all trending →~~**
## **What reviews say buyers love and hate about little mermaid costume toddler**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**24%
*“Great fit”*
**Quality-Overall**14%
*“It is made beautiful”*
**Value For Money**13%
*“Its totally worth it”*
**Gifting Purpose**7%
*“This was a gift for a little girl”*
**Material Quality**6%
*“great material”*
**Design-Overall**5%
*“the accessories super cute”*
**Fun/Entertainment Experience**4%
*“The costume was fun for her”*
**Durability**4%
*“Durable”*
**Stitch/Finish/Polish**3%
*“it seems like it is sewed well”*
**Advertised Vs Actual Product**3%
*“Exactly as described”*
### **What buyers complain about **
**Size-Overall**27%
*“Runs very small”*
**Durability**13%
*“Broke as soon as my daughter tried it on”*
**Quality-Overall**13%
*“accessories were not good quality”*
**Advertised Vs Actual Product**8%
*“Item is not as advertised”*
**Allergies**6%
*“Ruffles on puffed sleeves leaves brush burn rash”*
**Stitch/Finish/Polish**5%
*“it was not sewn well at all”*
**Thickness**3%
*“its thin material and Id say runs a little small more of a 2-3 bit a 3-4”*
**Comfort-Overall**3%
*“uncomfortable”*
**Shrinkage Resistance**2%
*“Def will shrink in the dryer”*
**Color**2%
*“I do wish the red hair was a little less ultra fake vibrant”*
### **Top return reasons **
**Size-Overall**60%
**Length**5%
**Material Quality**5%
**Waist Fit**4%
**Quality-Overall**4%
**Advertised Vs Actual Product**3%
**Chest Fit**3%
**Value For Money**2%
**Sleeve Fit**2%
**Durability**2%
## **Common little mermaid costume toddler questions**
- **Is little mermaid costume toddler profitable to sell on Amazon United States?**
- The niche generates $51K/yr across 37 tracked products. 3 of 8 products launched in the last 360 days are still selling. 90-day search growth is -25.9%. Flapen's verdict: Skip it (39/100).
- **How competitive is the little mermaid costume toddler niche?**
- 21 brands and 29 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 59% of demand.
- **What do buyers complain about in little mermaid costume toddler?**
- Top complaints mined from reviews: Size-Overall, Durability, Quality-Overall. The return rate is 5.8% — above our launch gate.
- **When does demand for little mermaid costume toddler peak?**
- Demand peaks in Sep–Oct; the busiest month runs 11.4× the quietest.
- **What does it cost to enter the little mermaid costume toddler niche?**
- Listings span $9.65–$53.12; the average listing price is $25.81 (sweet spot $15–$100). The average incumbent carries 2,076 reviews — the moat a new listing must climb.
## **Related niches to research next**
Same-category niches scoring near this one — the next ones worth researching.
- 72 [**first communion gifts for boys**](https://flapen.com/research/us/clothing-shoes-jewelry/first-communion-gifts-for-boys)$398K/yr+223.5%**Worth a look**- 72 [**fifa world cup 2026 tshirt**](https://flapen.com/research/us/clothing-shoes-jewelry/fifa-world-cup-2026-tshirt)$177K/yr>1,000%**Worth a look**- 72 [**american flag hat**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-hat)$764K/yr+428.8%**Worth a look**- 72 [**white socks men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-socks-men)$3.0M/yr+13.3%**Launch it**- 72 [**american flag overalls**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-overalls)$662K/yr>1,000%**Worth a look**- 73 [**white ankle socks for men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-ankle-socks-for-men)$448K/yr+88.3%**Worth a look**[**All Clothing, Shoes & Jewelry niches **](https://flapen.com/research/us/clothing-shoes-jewelry)