cosleeper
Skip itWeak search conversion (0.3%) — this niche doesn't clear our bar today.
Avg price
Great$77.74avg listing price — sweet spot $15–$100
Review moat
Good673.18avg incumbent reviews — the moat a new listing must climb
Brand share
Good69%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Competition
Okay56%top-5 click share — leaders hold, buyers still browse
Price range
Okay$26.31–$253.54cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad$97K$97K/yr · 402K searches
Growth
Bad-8.0%90-day search growth — must beat 0% to launch
Returns
Bad7.4%return rate — above 5% kills the launch gate
Conversion
Bad0.3%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, cosleeper is a $97K/yr Amazon United States market (402K searches/yr). The top 5 brands hold 69% of demand. Demand peaks in Jan. Verdict: Skip it — 37/100.
Data updated Jul 20, 2026 · scored weekly · How we score niches
cosleeper market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $155K–$194K
- units × avg price
- Conversion rate
- 0.3%
- Avg BSR
- #73
- Page quality
- 0%
- Prime
- 79%
- Sponsored
- 86%
- Out of stock
- 14.9%
- Avg brand age
- 32 months
- Avg seller age
- 159 days
Competition & brand share
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.Brands
24 rising
Sellers
35
Top-5 brand share
69%
Top 20: 96%
Top-5 click share
56%
Top 20: 92%
Open market
28%
- Baby Delight40%
- BNAKKON8%
- XYLDGPTL8%
- JAZSH7%
- Munchkin5%
- Idudbid4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -8.0% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 2.1×
Top cosleeper search terms
- bed bassinet69K/yr
- in bed bassinet for baby51K/yr
- bed bassinet for baby in bed58K/yr
- bassinet for bed26K/yr
- bed sharing bassinet20K/yr
- baby delight snuggle nest21K/yr
- in bed bassinet15K/yr
- snuggle nest portable bassinet17K/yr
- beds for co-sleeping17K/yr
- co sleeping13K/yr
Top cosleeper 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
Baby Delight Snuggle Nest Bassinet Portable Baby Bed for Infants 0 5 Months Organic Oat
Baby Delight$56.374.4★1,198 rev
Baby Delight Snuggle Nest Bassinet Portable Baby Bed for Infants 0 5 Months Charcoal Tweed
Baby Delight$48.854.4★1,198 rev
Portable Baby Bassinet- Travel Bassinet for Newborn and Infant Suitable for Indoor & Outdoor Carry Lightweight Foldable Washable Portable Bassinet for Baby Travel Portable Travel Bassinet Grey
BNAKKON$78.214.4★206 rev
JAZSH 3 in 1 Bedside Bassinet 69.26 x 19.29 Baby Bassinets Bedside Sleeper with Mosquito Net + Storage Bag + Child Lock Baby Crib & Toddler Bed Rails for Twin Full Queen King Size Beige
JAZSH$105.813.6★36 rev
3 in 1 Baby bassinets bedside sleeper co sleeping bed for baby for co sleeper for baby in bed Portable Crib breathable and visible mesh window soft washable liner cover and sturdy aluminum alloy (
XYLDGPTL$136.544.1★36 rev
Newest
by launch date
Kynorva Co Sleeper for Baby in Bed Baby Bassinet Bedside Sleeper Portable Crib for Baby Washable Breathable Mesh | Height-Adjustable Frame
Kynorva$85.972 rev
Flwrgirl Baby Bassinets Bedside Sleeper - Portable Pine Wood Bedside Bassinet 6 Heights Small Mini Crib with Mattress Space-Saving Design Baby Crib for Newborns 0-12 Months Unpainted
Flwrgirl$137.16157 rev
Idudbid Baby Lounger & Snuggle Nest for Newborn 0-24 Months Baby Nest Supervised Breathable Cotton for Newborn Breathable Portable Infant Lounnger for Travel and Home Pink (Lounger Cover Included)
Idudbid$38.71164 rev
Cowiewie Bassinet Bedside Sleeper Baby Bassinet Slides Over Bed 5-Position Height Adjustment & Breathable All-Mesh Wall for Baby Space-Saving Bedside Crib Height (37.4-41.3) Beige
Cowiewie$81.25137 rev
Ezebaby Portable Travel Bassinet for Baby 0-5 Months Foldable Newborn Bassinet Baby Bed Infant Crib with Padded Mattress Canopy Mosquito Net Carrying Bag
Ezebaby$42.62129 rev
Trending
90-day click momentumKynorva Co Sleeper for Baby in Bed Baby Bassinet Bedside Sleeper Portable Crib for Baby Washable Breathable Mesh | Height-Adjustable Frame
Kynorva$85.975.0★
Idudbid Baby Lounger & Snuggle Nest for Newborn 0-24 Months Baby Nest Supervised Breathable Cotton for Newborn Breathable Portable Infant Lounnger for Travel and Home Pink (Lounger Cover Included)
Idudbid$38.714.4★
BubblePanda Rayon Made from Bamboo Toddler Sleep Sack with Feet 12-24 Months 1.0 Tog Ultra Soft Toddler Sleeping Sack 1t-2t Sleep Bag Walker Quilted Wearable Blanket with Legs 2-Way Zipper Lightweight
BubblePanda$28.024.7★
Flwrgirl Baby Bassinets Bedside Sleeper - Portable Pine Wood Bedside Bassinet 6 Heights Small Mini Crib with Mattress Space-Saving Design Baby Crib for Newborns 0-12 Months Unpainted
Flwrgirl$137.164.4★
Baby Deedee Sleep Nest Teddy - Sherpa Sleep Sack 2.5 TOG 6-18M Pink
baby deedee$30.464.8★
What buyers say about cosleeper
What buyers praise and complain about, mined from review topics.What buyers love
“Just as good as the name brand”
“Soft to the touch”
“The height was perfect with my bed”
“Finally some sleep”
“Nice and comfortable”
“Very sturdy”
“Great Value”
“Perfect for traveling”
“Great for everyday use”
“Assembly was simple”
What buyers complain about
“Too Big”
“Terrible quality control and customer service”
“Not sturdy”
“very thin mattress”
“Didnt work for her to sleep better”
“Assembly was a pain”
“Broke fast”
“Not worth the price”
“The zipper came broken”
“can not get it to stop”
Top return reasons
Common questions
- Is cosleeper profitable to sell on Amazon United States?
- The niche generates $97K/yr across 28 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -8.0%. Flapen's verdict: Skip it (37/100).
- How competitive is the cosleeper niche?
- 24 brands and 35 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 69% of demand.
- What do buyers complain about in cosleeper?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Strength. The return rate is 7.4% — above our launch gate.
- When does demand for cosleeper peak?
- Demand peaks in Jan; the busiest month runs 2.1× the quietest.
- What does it cost to enter the cosleeper niche?
- Listings span $26.31–$253.54; the average listing price is $77.74 (sweet spot $15–$100). The average incumbent carries 673 reviews — the moat a new listing must climb.