Is 3.5 tog sleeping bag 6-18 months profitable to sell on Amazon United Kingdom?

The niche generates £9K/yr across 76 tracked products. 0 of 23 products launched in the last 360 days are still selling. 90-day search growth is -59.9%. Flapen's verdict: Skip it (44/100).

How competitive is the 3.5 tog sleeping bag 6-18 months niche?

22 brands and 28 sellers compete. The top 5 products take 27% of clicks and top 5 brands hold 62% of demand.

What do buyers complain about in 3.5 tog sleeping bag 6-18 months?

Top complaints mined from reviews: Size-Overall, Durability, Value For Money. The return rate is 2.9%.

When does demand for 3.5 tog sleeping bag 6-18 months peak?

Demand peaks in Jan–Sep–Oct–Nov–Dec; the busiest month runs 14.0× the quietest.

What does it cost to enter the 3.5 tog sleeping bag 6-18 months niche?

Listings span £11.18–£72.50; the average listing price is £21.42 (sweet spot $15–$100). The average incumbent carries 805 reviews — the moat a new listing must climb.

3.5 tog sleeping bag 6-18 months

Skip it

Soft demand (-59.9% this quarter) — this niche doesn't clear our bar today.

Avg price

Great£21.42

avg listing price — sweet spot $15–$100

Price range

Great£11.18–£72.50

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Great27%

top-5 click share — an open shelf

Brand share

Good62%

top-5 brand share — brands hold most of the demand

Review moat

Good805.28

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Returns

Good2.9%

return rate — above 5% kills the launch gate

Conversion

Bad0.3%

search→purchase rate — share of searches ending in a sale

Market size

Bad£9K

£9K/yr · 126K searches

Growth

Bad-59.9%

90-day search growth — must beat 0% to launch

Signals No Dominant Brand

According to Flapen's Amazon United Kingdom niche tracking, 3.5 tog sleeping bag 6-18 months is a £9K/yr Amazon United Kingdom market (126K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Jan–Sep–Oct–Nov–Dec. Verdict: Skip it — 44/100.

Data updated Jul 18, 2026 · scored weekly · How we score niches

3.5 tog sleeping bag 6-18 months market data

Units sold / yr: 2K–2K; avg 0–100/product
Revenue / yr: £32K–£43K; units × avg price
Conversion rate: 0.3%
Avg BSR: #98
Page quality: 0%
Prime: 95%
Sponsored: 70%
Out of stock: 60.7%
Avg brand age: 42 months
Avg seller age: 176 days

Competition & brand share

Clicks spread well past the top 5 (27% combined) — an open shelf where new products get seen.

Brands

22 rising

Sellers

Top-5 brand share

62%

Top 20: 99%

Top-5 click share

27%

Top 20: 63%

Open market

31%

MIKAFEN16%
Yoofoss14%
Miracle Baby13%
Chilsuessy11%
Love To Dream8%
LILBESTIE8%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -59.9% search growth over the last 90 days.

Peak months: Jan, Sep, Oct, Nov, Dec · busiest ÷ quietest = 14.0×

Open Trend

Top 3.5 tog sleeping bag 6-18 months search terms

3.5 tog baby sleeping bag46K/yr -63.9%1.0% conv.
baby sleeping bag with arms14K/yr -68.9%0.4% conv.
baby sleeping bags with sleeves8K/yr -51.9%0.0% conv.
3.5 tog sleeping bag 6-18 months12K/yr -64.9%1.2% conv.
3.5 tog3K/yr -21.5%0.0% conv.
sleeping bag with arms4K/yr -59.5%0.3% conv.
3.5 tog sleeping bag 0-6 months3K/yr -39.6%0.0% conv.
3.5 tog sleeping bag 18-36 months6K/yr -66.7%1.4% conv.
3.5 tog sleeping bag9K/yr -69.0%0.0% conv.
winter sleeping bag baby6K/yr +30.5%0.4% conv.

All search terms

Top 3.5 tog sleeping bag 6-18 months 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.

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

Yoofoss Baby Sleeping Bag 3.5 TOG - 18-24 Months Winter Sleeping Bag Baby with Removable Long Sleeves 100% Organic Cotton Sleep Sack Newborn Infant Toddler

Yoofoss£19.044.7★2,519 rev

Chilsuessy Grey Elephant 3.5 Tog Sleeping Bag with Feet Removable Sleeves Toddler Sleeping Bag Winter 1-2 Years

Chilsuessy£18.074.4★318 rev

3.5 TOG Baby Wearable Blankets 0-6 6-18 Months 100% Cotton Long Detachable Sleeves for Girl Boys (Blue 0-6 Months)

Miracle Baby£20.703.9★18 rev

Yoofoss Baby Sleeping Bag 3.5 TOG - 0-6 Months Winter Sleeping Bag Baby with Removable Long Sleeves 100% Organic Cotton Sleep Sack Newborn Infant Toddler

Yoofoss£17.134.7★2,519 rev

MIKAFEN Baby Winter Sleeping Bag Kids Sleeping sack 3.5 Tog Cotton Sleeping sack Various Sizes from Birth to 4 Years Old

MIKAFEN£20.894.5★1,445 rev

Newest

by launch date

FIEMOL Baby Sleeping Bag 0-6 Months 0.5 Tog Baby Wearable Blankets Cotton 3 Pack Summer Breathable Sleep Sack for Newborn Infant 58-66cm Pink Rainbow

FIEMOL£20.381,087 rev

3mo ago

LILBESTIE Baby Sleeping Bag with Legs & Arms 1.5 Tog Long Sleeves Sleep Sack with Feet Toddler 100% Cotton Sleep Bag 3-4 Years Size L

LILBESTIE£16.58186 rev

5mo ago

LILBESTIE Baby Sleeping Bag with Legs & Long Arms Sleeves 1.5 Tog Sleep Sack with Feet Toddler 100% Cotton Sleep Bag for 24-36 Months Boy Girl M

LILBESTIE£16.25186 rev

5mo ago

Yoofoss Baby Sleeping Bag 3.5 TOG - 18-24 Months Winter Sleeping Bag Baby with Removable Long Sleeves 100% Organic Cotton Sleep Sack Newborn Infant Toddler

Yoofoss£19.042,519 rev

7mo ago

Yoofoss Baby Sleeping Bag 3.5 TOG - 0-6 Months Winter Sleeping Bag Baby with Removable Long Sleeves 100% Organic Cotton Sleep Sack Newborn Infant Toddler

Yoofoss£17.132,519 rev

7mo ago

What buyers say about 3.5 tog sleeping bag 6-18 months

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall26%

“Well-made”

Sleep Quality13%

“Gorgeous sleeping back and beautifully packaged”

Warmth10%

“keeps warmth well”

Soft Feel8%

“Lovely and soft”

Size-Overall7%

“they fit in these no problem”

Comfort-Overall5%

“comfortable”

Advertised Vs Actual Product4%

“As described”

Weather Proof4%

“Perfect for winter”

Zipper Quality3%

“Nice & easy to put on and zip up”

Durability2%

“very durable”

What buyers complain about

Size-Overall17%

“it was too big”

Durability10%

“Doesnt last”

Value For Money10%

“I wish this brand was cheaper”

Quality-Overall10%

“Really bad quality”

Neck Fit10%

“Good neck hole bit too big”

Thickness8%

“that said I think it would be uncomfortable if it was any thicker”

Functionality-Overall5%

“so didnt work past two weeks”

Stretchability/Expandability/Elasticity5%

“Too stretchy and not meant for slim or lean babies”

Comfort-Overall3%

“that said I think it would be uncomfortable if it was any thicker”

Top return reasons

Size-Overall53%

Thin8%

Zipper Quality6%

Quality-Overall6%

Material Quality5%

Functionality-Overall3%

Warmth2%

Value For Money2%

Advertised Vs Actual Product2%

Thickness2%

Common questions

Is 3.5 tog sleeping bag 6-18 months profitable to sell on Amazon United Kingdom?: The niche generates £9K/yr across 76 tracked products. 0 of 23 products launched in the last 360 days are still selling. 90-day search growth is -59.9%. Flapen's verdict: Skip it (44/100).
How competitive is the 3.5 tog sleeping bag 6-18 months niche?: 22 brands and 28 sellers compete. The top 5 products take 27% of clicks and top 5 brands hold 62% of demand.
What do buyers complain about in 3.5 tog sleeping bag 6-18 months?: Top complaints mined from reviews: Size-Overall, Durability, Value For Money. The return rate is 2.9%.
When does demand for 3.5 tog sleeping bag 6-18 months peak?: Demand peaks in Jan–Sep–Oct–Nov–Dec; the busiest month runs 14.0× the quietest.
What does it cost to enter the 3.5 tog sleeping bag 6-18 months niche?: Listings span £11.18–£72.50; the average listing price is £21.42 (sweet spot $15–$100). The average incumbent carries 805 reviews — the moat a new listing must climb.