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Sleep Sack

Maybe

Shoppers spend $3.5M a year here. But buyers convert on only 1.4% of searches, so Sleep Sack is a Maybe.

Flapen Score
53
53 / 100
Top 19% of 16,930 Clothing, Shoes & Jewelry niches · +8 vs the category median of 45
Market size
$3.5M/yr8.2M searches / yr
90-day growth
-7.6%search demand this quarter
Competition
34%top-5 click share · 23 brands · 29 sellers

Flapen Score

Sleep Sack against its category

The dotted line is the Clothing, Shoes & Jewelry average. Past it, Sleep Sack is stronger. Inside it, weaker.

53Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Sleep Sack market on Amazon at a glance

Sleep Sack is a $3.5M a year market on Amazon United States, with 8.2M searches a year. The top 5 brands take 69% of clicks. Flapen scores it 53 out of 100, a Maybe.

01 · Demand

Demand comes close.

Shoppers search 8.2M times a year and 1.4% buy. Search demand moved -7.6% in 90 days, so the $3.5M a year market is softening.

Search volume
8.2M
Search growth, 90 days
-7.6%
Conversion
1.4%
Market size
$3.5M

02 · Money

The money is there.

Shoppers bought 100K to 125K units at $30.35 on average, 1,500 to 2,000 per product. Units times price is $3.0M to $3.8M a year.

Units sold
100K–125K
Units per product
1,500–2,000
Average price
$30.35
Units × price
$3.0M–$3.8M

03 · Shelf

Brands here are settling in.

The average listing ranks #184. 100% of listings ship Prime. 95% of the shelf is sponsored, so budget for ads. The average listing is out of stock 0.5% of the time. The average brand has sold here for 48 months.

Average BSR
#184
Prime
100%
Sponsored
95%
Out of stock
0.5%
Average brand age
48 months

Products

Top Sleep Sack products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take only 34% of clicks. An open shelf where new products get seen.

$0$104K$208K$312K$416K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

23 rising

Sellers

29

Top-5 brand share

69%

Top 20: 98%

Top-5 click share

34%

Top 20: 68%

Open market

25%

  • Okayinn22%
  • HALO18%
  • Wrrernsin14%
  • KYTE BABY9%
  • FIEMOL6%
  • Yoofoss6%

Demand

Sleep Sack search demand

Weekly searches over the year, seasonality beneath. Pick a range.

225K175KPrime Day '24Spike '24Prime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Sleep Sack search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • sleep sack2.9M/yr
  • baby sleep sack821K/yr
  • sleep sack 6-12 months625K/yr
  • kyte baby sleep sack601K/yr
  • sleep sack 0-3 months445K/yr
  • sleep sack 3-6 months412K/yr
  • sleep sacks243K/yr
  • sleep sack 12-18 months307K/yr
  • newborn sleep sacks242K/yr
  • 0.5 tog sleep sack88K/yr

Reviews and returns

What reviews say buyers love and hate about Sleep Sack

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Size-Overall19%−0.07

Too short

Poor fit

Way too big

Sleep Quality6%+1.39

unfortunately it didn't make a difference with his sleep

baby didn't like to sleep in it

hasn't woke up AT ALL

Zipper Quality5%−0.02

Broken zipper

Cheap zipper

zipper broke after a couple months

Thickness4%

Item was thicker than expected

a little thicker

Thinner than expected

Velcro Quality4%−0.02

Velcro is annoying

the Velcro does not stay at all

Velcro doesnt stick

Love

Soft Feel19%

Soft Fabric

This is soooo buttery soft

It's very soft

Sleep Quality15%+1.39

He sleeps so good in it

I have loved this sleep suit

perfect for sleep

Quality-Overall12%+0.53

High Quality for Price

Amazing quality

These are well made

Size-Overall5%−0.07

Sizing is accurate

Fits nice

Length is perfect

Comfort-Overall5%+0.32

Super comfortable

comfortable all night

Comfortable for baby

Return

4.8% Return rate 73% Fixable by listing

Size-Overall57%██▇▇██

Too short

Poor fit

Way too big

Material Quality5%▅▇▇███

cheap materials

The material is also pretty thin and cheap feeling

Not the best material

Thin3%▆█▆▆▅▆
Age Suitability3%█▅▆▅▆▅
Advertised Vs Actual Product3%▄██▇██

FAQ

Common Sleep Sack questions

Answered from the same tracked data.