Alien Onesie
FailAn estimated 15.4% of orders come back, so Alien Onesie is a Fail.
- Flapen Score
- 42 / 100Ranks 10,652 of 16,930 Clothing, Shoes & Jewelry niches · −3 vs the category median of 4542
- Market size
- $10K/yr77K searches / yr
- 90-day growth
- +12.5%search demand this quarter
- Competition
- 41%top-5 click share · 25 brands · 29 sellers
Flapen Score
Alien Onesie against its category
The dotted line is the Clothing, Shoes & Jewelry average. Past it, Alien Onesie is stronger. Inside it, weaker.
Market
The Alien Onesie market on Amazon at a glance
Shoppers on Amazon United States searched for Alien Onesie 77K times last year and spent an estimated $10K. The top 5 brands take 63% of clicks. Demand peaks in Oct–Nov. Flapen scores it 42 out of 100, a Fail.
01 · Demand
An estimated 0.5% of those searches ended in a purchase.
Shoppers searched for this 77K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 0.5% of those searches ended in a purchase. Searches in the last 90 days moved +12.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $10K a year.
- Searches, last 12 months
- 77K
- Growth, 90 days vs prior 90
- +12.5%
- Conversion, latest week
- 0.5%
- Market size, estimated
- $10Ka year
- Peak month
- October10.8× the quietest month
- Top search term
- alien onesie36K searches a year
02 · Price
A sale here is worth $28.72.
Listings sell for $28.72 on average, from $15.57 to $45.13. Amazon reports units sold in ranges. This niche sold 750 to 1K a year. The average listing sells 0 to 100 of them. At $28.72 that is $0 to $3K a year per listing.
- Average price
- $28.72inside the $15 to $100 sweet spot
- Price range
- $15.57–$45.13
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 750–1K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$3K
- Returns
- 15.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
91% of listings pay for placement with sponsored ads. 98% ship with Prime. On an average day, 20.8% of listings are out of stock. The average listing ranks #26,841 within Sleep & Lounge. It carries 1,635 reviews at 4.47 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 91%
- Prime listings
- 98%
- Out of stock, average day
- 20.8%
- Average rank
- #26,841in Sleep & Lounge
- Average rating
- 4.47 starsAmazon United States average 4.42 stars
- Average reviews
- 1,635per listing
- Listings tracked
- 43
04 · Newcomers
1 of last year's 13 launches cleared the first-year sales bar.
13 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 34 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 13
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 34 months
Products
Top Alien Onesie products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 21, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
COSUSKET Fitted Unisex Adult Aliens Onesie Pajamas Halloween Flannel Womens Cosplay One Piece Costume Green/Blue
- Price
- $29.83
- Rating
- 4.7/5
- Reviews
- 9,011
- Age
- 2y ago

vavalad Adult Onesie Costume Halloween Christmas Cosplay Costume Women Men
- Price
- $32.92
- Rating
- 4.6/5
- Reviews
- 246
- Age
- 4y ago

COSUSKET Fitted Unisex Adult Aliens Onesie Pajamas Halloween Flannel Womens Cosplay One Piece Costume Green/Blue
- Price
- $31.45
- Rating
- 4.7/5
- Reviews
- 9,011
- Age
- 1y ago

NAMHTOM Adult alien onesie costume cosplay animal pajamas Halloween Costumes cartoon cosplay sleepwear for women men
- Price
- $34.90
- Rating
- 4.5/5
- Reviews
- 108
- Age
- 2y ago

HSCTEK Alien Onesie Costume Adult Women Men Cute Funny Space Pajamas Clothes XL
- Price
- $35.66
- Rating
- 4.6/5
- Reviews
- 225
- Age
- 1y ago
Trending
estimated 90-day click momentum
NAMHTOM Adult Alien Onesie Costume Cosplay Animal Pajamas Halloween Costumes Cartoon Cosplay Sleepwear for Women Men
- Price
- $34.34
- Rating
- 4.5/5
- Reviews
- 108
- Age
- 3mo ago

ANMIBOBU Adult Onesie Pajamas Unisex Animal Cosplay Halloween Costume One Piece Plush Sleepwear Homewear Green Alien-M
- Price
- $29.54
- Rating
- 4.6/5
- Reviews
- 157
- Age
- 5mo ago

NAMHTOM Adult Alien Onesie Costume Cosplay Animal Pajamas Halloween Costumes Cartoon Cosplay Sleepwear for Women Men
- Price
- $35.40
- Rating
- 4.5/5
- Reviews
- 108
- Age
- 3mo ago

ANMIBOBU Adult Onesie Pajamas Unisex Animal Cosplay Halloween Costume One Piece Plush Sleepwear Homewear Green Alien-L
- Price
- $29.62
- Rating
- 4.6/5
- Reviews
- 157
- Age
- 5mo ago

HUNTFAMI Silky Short Satin Pajamas For Women 2 Pieces Comfy Sleepwear Pajama Gift in Summer Night Alien UFO
- Price
- $35.00
- Rating
- 4.1/5
- Reviews
- 15
- Age
- 4mo ago
Newest
by launch date
NAMHTOM Adult Alien Onesie Costume Cosplay Animal Pajamas Halloween Costumes Cartoon Cosplay Sleepwear for Women Men
- Price
- $35.40
- Rating
- 4.5/5
- Reviews
- 108
- Age
- 3mo ago

NAMHTOM Adult Alien Onesie Costume Cosplay Animal Pajamas Halloween Costumes Cartoon Cosplay Sleepwear for Women Men
- Price
- $34.34
- Rating
- 4.5/5
- Reviews
- 108
- Age
- 3mo ago

HUNTFAMI Silky Short Satin Pajamas For Women 2 Pieces Comfy Sleepwear Pajama Gift in Summer Night Alien UFO
- Price
- $35.00
- Rating
- 4.1/5
- Reviews
- 15
- Age
- 4mo ago

ANMIBOBU Adult Onesie Pajamas Unisex Animal Cosplay Halloween Costume One Piece Plush Sleepwear Homewear Green Alien-L
- Price
- $29.62
- Rating
- 4.6/5
- Reviews
- 157
- Age
- 5mo ago

ANMIBOBU Adult Onesie Pajamas Unisex Animal Cosplay Halloween Costume One Piece Plush Sleepwear Homewear Green Alien-M
- Price
- $29.54
- Rating
- 4.6/5
- Reviews
- 157
- Age
- 5mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 41% of clicks. Leaders hold, but buyers still shop past them.
Brands
25 rising
Sellers
29
Est. top-5 brand share
63%
Top 20: 97%
Est. top-5 click share
41%
Top 20: 80%
Open market
32%
- COSUSKET23%
- NAMHTOM17%
- vavalad10%
- HSCTEK7%
- ANMIBOBU7%
- MSOKAZZLES5%
Demand
Alien Onesie search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Oct, Nov · busiest ÷ quietest = 10.8×
Search terms
Top Alien Onesie search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- alien onesie36K/yr
- alien onesie adult25K/yr
- alien pajamas11K/yr
- alien onsie5K/yr
Reviews and returns
What reviews say buyers love and hate about Alien Onesie
We read the reviews and the return reasons for every product selling here.
“Runs short”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
21 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Alien Onesie questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









