Is shark blanket profitable to sell on Amazon United Kingdom?

The niche generates £50K/yr across 21 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -32.3%. Flapen's verdict: Skip it (38/100).

How competitive is the shark blanket niche?

11 brands and 19 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 84% of demand.

What do buyers complain about in shark blanket?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Stitch/Finish/Polish. The return rate is 4.6%.

When does demand for shark blanket peak?

Demand peaks in Oct–Nov–Dec; the busiest month runs 5.8× the quietest.

What does it cost to enter the shark blanket niche?

Listings span £14.34–£24.30; the average listing price is £18.52 (sweet spot $15–$100). The average incumbent carries 199 reviews — the moat a new listing must climb.

shark blanket

Skip it

Soft demand (-32.3% this quarter) — this niche doesn't clear our bar today.

Review moat

Great199.14

avg incumbent reviews — the moat a new listing must climb

Price range

Great£14.34–£24.30

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

Avg price

Great£18.52

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Competition

Okay63%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay84%

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

Returns

Okay4.6%

return rate — above 5% kills the launch gate

Conversion

Bad1.6%

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

Market size

Bad£50K

£50K/yr · 173K searches

Growth

Bad-32.3%

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

According to Flapen's Amazon United Kingdom niche tracking, shark blanket is a £50K/yr Amazon United Kingdom market (173K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 38/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

shark blanket market data

Units sold / yr: 3K–4K; avg 100–250/product
Revenue / yr: £56K–£74K; units × avg price
Conversion rate: 1.6%
Avg BSR: #131
Page quality: 0%
Prime: 100%
Sponsored: 62%
Out of stock: 15.0%
Avg brand age: 36 months
Avg seller age: 201 days

Competition & brand share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 rising

Sellers

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

63%

Top 20: 99%

Open market

11%

TBGENIUS43%
Shamdon Home Collection18%
IDAHSOR12%
Ambitelligence6%
QUSLLIS5%
AMAMHAHAVA4%
Open — no brand owns it (5 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -32.3% search growth over the last 90 days.

Peak months: Oct, Nov, Dec · busiest ÷ quietest = 5.8×

Open Trend

Top shark blanket search terms

shark onesie69K/yr -23.8%1.2% conv.
shark blanket40K/yr -27.2%1.4% conv.
shark onesie adult19K/yr -46.1%1.8% conv.
shark onesie kids12K/yr -48.7%0.6% conv.
shark onsie7K/yr -35.5%1.1% conv.
shark sleeping bag4K/yr -26.9%0.0% conv.
shark onesies for adults4K/yr +29.3%2.7% conv.
shark oodie5K/yr -40.4%0.8% conv.
shark blanket kids4K/yr -72.5%0.8% conv.
shark blanket adult9K/yr -85.0%1.6% conv.

All search terms

Top shark blanket 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 21 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

TBGENIUS Shark Blanket Onesie Shark Hoodie for Adults and Kids Cozy Flannel Shark Costume Shark Sleeping Bag

TBGENIUS£20.124.4★229 rev

Shark Blanket Hoodie Onesie for Women Men Adult Kid Cozy Wearable Blanket Sleeping Bag Soft Shark Costume Pajamas

Shamdon Home Collection£15.894.5★122 rev

TBGENIUS Shark Blanket Onesie Shark Hoodie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag

TBGENIUS£18.034.4★229 rev

TBGENIUS Shark Blanket Onesie Shark Hoodie for Adults Cozy Flannel Shark Costume Shark Sleeping Bag

TBGENIUS£15.934.4★229 rev

Ambitelligence Shark Blanket Hoodie Onesie for Adults Cozy Flannel Wearable Shark Blanket Costume Sleeping Bag Grey

Ambitelligence£17.484.3★468 rev

Newest

by launch date

AMAMHAHAVA Adult Shark Onesie Costume Halloween Animal Cosplay Pyjamas Novelty Nightwear for Women and Men

AMAMHAHAVA£20.2036 rev

7mo ago

AMAMHAHAVA Adult Shark Onesie Costume Halloween Animal Cosplay Pyjamas Novelty Nightwear for Women and Men

AMAMHAHAVA£23.0436 rev

7mo ago

COOKY.D Adult Hooded Pyjamas Halloween Family Gaming Costume Shark XL

COOKY.D£17.6466 rev

1y ago

Ambitelligence Shark Blanket Hoodie Onesie for Adults Cozy Flannel Wearable Shark Blanket Costume Sleeping Bag Grey

Ambitelligence£17.48468 rev

1y ago

Thigies Whale Blanket Hoodie Wearable Blanket Whale Tail Hoodie Onesie Cosy Fluffy Fleece Sleeping Bag Onesie Whale Costume for Adult Women Men

Thigies£15.9137 rev

2y ago

What buyers say about shark blanket

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

What buyers love

Size-Overall18%

“The arms and legs fit perfect”

Warmth14%

“Feet stay warm”

Comfort-Overall12%

“Very comfortable”

Value For Money11%

“Good value for money”

Soft Feel10%

“Very soft and comfortable to wear”

Quality-Overall9%

“Good quality and size is just right for an early teen and below”

Gifting Purpose6%

“A hilarious gift that I got for someone, it fit perfectly and was amazingly comfortable and cosy”

Fun/Entertainment Experience4%

“Good fun”

Durability2%

“Soft and durable”

Quick Drying2%

“Washes and drys quickly”

What buyers complain about

Size-Overall52%

“Should be big, even”

Quality-Overall5%

“Poorly made and poorly fitting”

Stitch/Finish/Polish3%

“Reason for the 3 stars is that the product came damaged with a small hole on the sole of the right foot along the seam”

Thin3%

“Only issue is it's a little thin”

Top return reasons

Size-Overall85%

Quality-Overall2%

Touch/Button Controls2%

Stitch/Finish/Polish2%

Advertised Vs Actual Product1%

Comfort-Overall1%

Material Quality1%

Smell1%

Functionality-Overall1%

Gap/Hole1%

Common questions

Is shark blanket profitable to sell on Amazon United Kingdom?: The niche generates £50K/yr across 21 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -32.3%. Flapen's verdict: Skip it (38/100).
How competitive is the shark blanket niche?: 11 brands and 19 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 84% of demand.
What do buyers complain about in shark blanket?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Stitch/Finish/Polish. The return rate is 4.6%.
When does demand for shark blanket peak?: Demand peaks in Oct–Nov–Dec; the busiest month runs 5.8× the quietest.
What does it cost to enter the shark blanket niche?: Listings span £14.34–£24.30; the average listing price is £18.52 (sweet spot $15–$100). The average incumbent carries 199 reviews — the moat a new listing must climb.