newborn costume girl
Skip itA small market ($7K/yr) — this niche doesn't clear our bar today.
Avg price
Great$18.23avg listing price — sweet spot $15–$100
Brand share
Great55%top-5 brand share — no brand owns this niche
Price range
Great$8.33–$44.88cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good45%top-5 click share — leaders hold, buyers still browse
Review moat
Good1,084.74avg incumbent reviews — the moat a new listing must climb
Growth
Okay+7.6%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Returns
Bad6.1%return rate — above 5% kills the launch gate
Conversion
Bad0.3%search→purchase rate — share of searches ending in a sale
Market size
Bad$7K$7K/yr · 156K searches
According to Flapen's Amazon United States niche tracking, newborn costume girl is a $7K/yr Amazon United States market (156K searches/yr). The top 5 brands hold 55% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 40/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
newborn costume girl market data
- Units sold / yr
- 500–750
- avg 0–100/product
- Revenue / yr
- $9K–$14K
- units × avg price
- Conversion rate
- 0.3%
- Avg BSR
- #488
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 72%
- Out of stock
- 10.8%
- Avg brand age
- 40 months
- Avg seller age
- 190 days
Competition & brand share
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.Brands
30 falling
Sellers
36
Top-5 brand share
55%
Top 20: 89%
Top-5 click share
45%
Top 20: 79%
Open market
41%
- M&G House20%
- AiWMGL11%
- YINGISFITM10%
- Dcohmch7%
- Disney6%
- citgeett4%
Demand & seasonality
Weekly Amazon search volume, last 88 weeks — +7.6% search growth over the last 90 days.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 100.2×
Top newborn costume girl search terms
- newborn costume girl35K/yr
- newborn baby costume11K/yr
- disfraz para bebe 0-38K/yr
- baby boy costumes 0-3 months10K/yr
- baby girl costumes 0-3 months12K/yr
- preemie halloween costume25K/yr
- newborn girl costume10K/yr
- new born costumes girl5K/yr
- preemie halloween6K/yr
- 0-3 months halloween costume girl8K/yr
Top newborn costume girl 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
M&G House Newborn Photography Props Bathrobe Outfits Girl Baby Robe Bath Towel Costume Sets 0-6 Months(Pink)
M&G House$16.414.7★2,024 rev
AiWMGL Newborn Baby Bear Outfit Suit With Fold-Over Mittens and Footies Girls Boys 0-3 Months Winter Fleece Clothes Suit Hooded Jumpsuit Romper Snowsuit
AiWMGL$19.724.5★1,465 rev
YINGISFITM My First Halloween Baby Girl Outfit Newborn Pumpkin Bubble Romper Infant Jumpsuit Cute Girls Pumpkin Clothes (Pumpkin Face 0-3 Months)
YINGISFITM$14.754.6★294 rev
Baby Boy Girl Dinosaur Costume Cute Sleeveless Romper with Hat Newborn Infant Halloween Cosplay Clothes (Emerald 0-3 Months)
Dcohmch$19.964.6★167 rev
citgeett My First Halloween Baby Girl Outfit Cutest Pumpkin Long Sleeve Romper Jumpsuit Newborn Girl Outfits Clothes (halloween newborn outfit 0-3 Months)
citgeett$13.294.3★77 rev
Newest
by launch date
Baby Boy Girl Dinosaur Costume Cute Sleeveless Romper with Hat Newborn Infant Halloween Cosplay Clothes (Pink 0-3 Months)
Dcohmch$19.90167 rev
Wosixima Infant Mouse Costume Outfit Suit Bodysuit First Birthday Clothes 4-Piece Set with Suit Bodysuit Shorts Suspenders and Ears 0-3 Months
Wosixima$18.82272 rev
Bibimom Newborn Baby Girl Clothes Cotton Baby Girl Outfits New Born Clothes 0-3 Months Pink Cute Romper Photoshoot Hospital Outfit Jumpsuit Spring Fall Winter
Bibimom$8.33108 rev
Baby Boy Girl Dinosaur Costume Cute Sleeveless Romper with Hat Newborn Infant Halloween Cosplay Clothes (Emerald 0-3 Months)
Dcohmch$19.96167 rev
Licupiee Infant Boy Girl Ladybug Romper Hooded Long Sleeve Fleece Bee Jumpsuit Newborn Baby Halloween Costume Animal Clothes (Red 0-3 Months)
Licupiee$22.8732 rev
Trending
90-day click momentumBaby Boy Girl Dinosaur Costume Cute Sleeveless Romper with Hat Newborn Infant Halloween Cosplay Clothes (Pink 0-3 Months)
Dcohmch$19.904.6★
Bibimom Newborn Baby Girl Clothes Cotton Baby Girl Outfits New Born Clothes 0-3 Months Pink Cute Romper Photoshoot Hospital Outfit Jumpsuit Spring Fall Winter
Bibimom$8.334.6★
YINGISFITM Newborn Infant Baby Girl Clothes Fall Winter Long Sleeve Bubble Romper Floral Bow One Piece Jumpsuit Cute Outfits (Blue 3-6 Months)
YINGISFITM$15.074.6★
M&G House Newborn Photography Props - Bathrobe Outfits for Baby Photoshoots - Girl Baby Robe - Newborn Costume - White (0-6 Months)
M&G House$15.644.7★
Disney Winnie the Pooh Newborn Baby Boys 4 Piece Outfit Set: Bodysuit Pants Bib Hat Yellow 0-3 Months
Disney$20.364.8★
What buyers say about newborn costume girl
What buyers praise and complain about, mined from review topics.What buyers love
“The material is soft”
“the quality was amazing for the babys 3 months pics”
“Fit well”
“Worth the buy”
“It kept my grand daughter warm and snuggly”
“Beautiful color and soft”
“Elegant, good material”
“exactly as described”
“Design is beautiful”
“Cute cuddly and comfy”
What buyers complain about
“Smaller than normal size”
“Poor quality”
“cheap fabric”
“Has no comfort or warmth value”
“I few gems fell off the crown”
“comes with a very strong chemical smell out the box”
“he was too warm”
“They shrink every time you wash them no matter what type of water you use”
“Bad/rough quality”
“its somewhat thin”
Top return reasons
Common questions
- Is newborn costume girl profitable to sell on Amazon United States?
- The niche generates $7K/yr across 39 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is +7.6%. Flapen's verdict: Skip it (40/100).
- How competitive is the newborn costume girl niche?
- 30 brands and 36 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 55% of demand.
- What do buyers complain about in newborn costume girl?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Material Quality. The return rate is 6.1% — above our launch gate.
- When does demand for newborn costume girl peak?
- Demand peaks in Sep–Oct–Nov; the busiest month runs 100.2× the quietest.
- What does it cost to enter the newborn costume girl niche?
- Listings span $8.33–$44.88; the average listing price is $18.23 (sweet spot $15–$100). The average incumbent carries 1,085 reviews — the moat a new listing must climb.