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51

grounding sheets california king

Worth a look

Shows beatable incumbent ratings (3.9★), but soft demand (-50.6% this quarter) keeps it on the watch list.

Market size 27Growth 0Conversion 56Competition 62Returns 44Price range 46Avg price 75Brand share 73Review moat 91Quality gap 96

Quality gap

Incredible3.9★

avg incumbent rating — lower means beatable quality

Review moat

Great184.53

avg incumbent reviews — the moat a new listing must climb

Avg price

Great$101.28

avg listing price — sweet spot $15–$100

Brand share

Good62%

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

Competition

Good48%

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

Conversion

Good4.7%

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

Price range

Okay$31.34–$181.13

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

Returns

Okay3.5%

return rate — above 5% kills the launch gate

Market size

Okay$113K

$113K/yr · 24K searches

Growth

Bad-50.6%

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

According to Flapen's Amazon United States niche tracking, grounding sheets california king is a $113K/yr Amazon United States market (24K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Feb–Dec. Verdict: Worth a look — 51/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

grounding sheets california king market data

Units sold / yr
750–1K
avg 0–100/product
Revenue / yr
$76K–$101K
units × avg price
Conversion rate
4.7%
Avg BSR
#326
Page quality
0%
Prime
100%
Sponsored
73%
Out of stock
43.7%
Avg brand age
21 months
Avg seller age
191 days

Competition & brand share

The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 rising

Sellers

23

Top-5 brand share

62%

Top 20: 100%

Top-5 click share

48%

Top 20: 92%

Open market

32%

  • ECOHEAL16%
  • PANBMAO14%
  • OneAmg13%
  • LAXVAPIU11%
  • YOUBLAO8%
  • CHALTOUL7%

Demand & seasonality

Weekly Amazon search volume, last 90 weeks — -50.6% search growth over the last 90 days.
1K750Holiday '24Spike '25Prime Day '25Holiday '25Spike '26DecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Feb, Dec · busiest ÷ quietest = 3.5×

Top grounding sheets california king search terms

  • grounding sheets california king15K/yr
  • grounding sheets cal king5K/yr
  • california king grounding sheets4K/yr
All search terms

Top grounding sheets california king 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%$5K8%$9K12%$14K16%$18K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about grounding sheets california king

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

What buyers love

Quality-Overall16%

“beautifully made”

Sleep Quality16%

“Sleeping well”

Size-Overall11%

“Nice fit”

Soft Feel10%

“They are soft”

Comfort-Overall9%

“Comfortable”

Advertised Vs Actual Product8%

“Works as intended”

Durability4%

“feels very durable”

Efficiency3%

“it works really well”

Gifting Purpose3%

“I also buy it as a gift for friends”

Value For Money2%

“Great value for the money”

What buyers complain about

Functionality-Overall26%

“Didn't work”

Size-Overall16%

“Doesnt fit the California king”

Value For Money5%

“Buy cheaper”

Warmth3%

“they are very hot”

Moist/Dry3%

“Completely dried me out”

Connectivity-Overall3%

“I disconnected after two week i keep waking up not getting enuf sleep”

Ease Of Use3%

“Cant use it”

Hard Feel3%

“Material was irritating/scratchy- not soft at all”

Stretchability/Expandability/Elasticity3%

“after use the elastic is gone”

Quality-Overall3%

“Junk”

Top return reasons

Functionality-Overall23%
Size-Overall19%
Advertised Vs Actual Product12%
Material Quality7%
Defective Material/Parts5%
Color4%
Comfort-Overall4%
Value For Money3%
Hard Feel3%
Quality-Overall2%

Common questions

Is grounding sheets california king profitable to sell on Amazon United States?
The niche generates $113K/yr across 30 tracked products. 5 of 16 products launched in the last 360 days are still selling. 90-day search growth is -50.6%. Flapen's verdict: Worth a look (51/100).
How competitive is the grounding sheets california king niche?
20 brands and 23 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 62% of demand.
What do buyers complain about in grounding sheets california king?
Top complaints mined from reviews: Functionality-Overall, Size-Overall, Value For Money. The return rate is 3.5%.
When does demand for grounding sheets california king peak?
Demand peaks in Feb–Dec; the busiest month runs 3.5× the quietest.
What does it cost to enter the grounding sheets california king niche?
Listings span $31.34–$181.13; the average listing price is $101.28 (sweet spot $15–$100). The average incumbent carries 185 reviews — the moat a new listing must climb.