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45

blackout curtain lining

Skip it

A small market ($56K/yr) — this niche doesn't clear our bar today.

Market size 14Growth 68Conversion 28Competition 49Returns 95Price range 36Avg price 72Brand share 17Review moat 25Quality gap 47

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Avg price

Good£14.58

avg listing price — sweet spot $15–$100

Growth

Good+49.2%

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

Competition

Okay56%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Price range

Okay£2.73–£21.79

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

Conversion

Okay2.2%

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

Review moat

Bad4,193.52

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad93%

top-5 brand share — brand-locked demand

Market size

Bad£56K

£56K/yr · 173K searches

According to Flapen's Amazon United Kingdom niche tracking, blackout curtain lining is a £56K/yr Amazon United Kingdom market (173K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jun–Jul. Verdict: Skip it — 45/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

blackout curtain lining market data

Units sold / yr
8K–10K
avg 250–500/product
Revenue / yr
£117K–£146K
units × avg price
Conversion rate
2.2%
Avg BSR
#78
Page quality
0%
Prime
43%
Sponsored
81%
Out of stock
4.0%
Avg brand age
51 months
Avg seller age
187 days

Competition & brand share

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 flat

Sellers

13

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

56%

Top 20: 99%

Open market

3%

  • rejuvopedic33%
  • Melodieux23%
  • Kinfolk Textile16%
  • Emma Barclay15%
  • RAYYAN LINEN6%
  • PONY DANCE4%
  • Open — no brand owns it (3 brands, 3%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +49.2% search growth over the last 90 days.
5K3KSpike '24Black Friday '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jun, Jul · busiest ÷ quietest = 2.1×

Top blackout curtain lining search terms

  • blackout curtain lining31K/yr
  • blackout curtain liner11K/yr
  • blackout lining for eyelet curtains11K/yr
  • blackout linings for curtains10K/yr
  • curtain lining20K/yr
  • blackout lining10K/yr
  • blackout curtain linings5K/yr
  • black out curtain liners uk5K/yr
  • thermal curtain lining18K/yr
  • curtain blackout lining5K/yr
All search terms

Top blackout curtain lining 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.

0%4%£2K8%£4K12%£7K16%£9K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

What buyers say about blackout curtain lining

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

What buyers love

Quality-Overall22%

“Good quality, easy to fit, total blackout curtains”

Value For Money12%

“Good value”

Size-Overall11%

“Perfect fit”

Advertised Vs Actual Product10%

“just what we have been looking for”

Upholstery/Fabric Quality9%

“Good quality fabric”

Material Quality6%

“soft material”

Ease Of Use4%

“easy to use”

Weight Light4%

“The curtains are very lightweight”

Color2%

“The black colour is deep and consistent throughout the fabric, giving the room a smart, finished look”

Brightness/Shine/Glow2%

“thus resulting in a bright light in our bedroom every few minutes along with sleepless nights”

What buyers complain about

Size-Overall21%

“wrong size delivered”

Material Quality11%

“Black out curtains that let let though because of cheap materials really defeats the point”

Thickness10%

“Their very thin”

Value For Money7%

“A little more expensive than some alternatives on Amazon”

Advertised Vs Actual Product6%

“Deeply disappointed given the bold claims on the listing”

Thin5%

“Very thin”

Measurement/Reading Accuracy5%

“My measurements were off a bit”

Stretchability/Expandability/Elasticity2%

“they don't stretch out fully”

Ease Of Use2%

“the clips are not easy to use”

Instructions/User Manual/Troubleshooting2%

“only downside is no instructions so I got it wrong a few times”

Top return reasons

Size-Overall74%
Material Quality4%
Advertised Vs Actual Product4%
Quality-Overall4%
Color4%
Functionality-Overall3%
Thin2%
Compatibility-Overall1%
Value For Money1%
Weight Heavy1%

Common questions

Is blackout curtain lining profitable to sell on Amazon United Kingdom?
The niche generates £56K/yr across 21 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +49.2%. Flapen's verdict: Skip it (45/100).
How competitive is the blackout curtain lining niche?
9 brands and 13 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in blackout curtain lining?
Top complaints mined from reviews: Size-Overall, Material Quality, Thickness. The return rate is 0.9%.
When does demand for blackout curtain lining peak?
Demand peaks in Jun–Jul; the busiest month runs 2.1× the quietest.
What does it cost to enter the blackout curtain lining niche?
Listings span £2.73–£21.79; the average listing price is £14.58 (sweet spot $15–$100). The average incumbent carries 4,194 reviews — the moat a new listing must climb.