---
title: "Grounding Sheets California King — $113K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/grounding-sheets-california-king"
last_updated: "2026-08-05T18:50:09.422Z"
locale: en
meta:
description: "Niche score 51/100 · $113K/yr market · 24K searches/yr · $101.28 avg price. Soft demand (-50.6% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $113K/yr market · 24K searches/yr · $101.28 avg price. Soft demand (-50.6% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Grounding Sheets California King — $113K/yr Amazon US Niche (2026) - Flapen"
---
# **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**
**Incredible****3.9★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****184.53**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Great****$101.28**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****62%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Good****4.7%**
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**
**Okay****3.5%**
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
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
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 ~~](https://flapen.com/research/methodology)
## **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 '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Feb, Dec · busiest ÷ quietest = 3.5×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/grounding-sheets-california-king/trend)
## **Top grounding sheets california king search terms**
- **grounding sheets california king**15K/yr-53.7%3.5% conv. - **grounding sheets cal king**5K/yr-44.8%3.6% conv. - **california king grounding sheets**4K/yr-47.9%3.7% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/grounding-sheets-california-king/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 moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Grounding Sheets California King Size Earth Grounded Fitted Bed Sheet 10% Pure Silver Fiber + 90% Organic Cotton Bed Grounding Kit with grounding Cord for Improved Sleep & Wellness(Gray 80x72x15)**OneAmg**$55.93**4.7★146 rev](https://www.amazon.com/dp/B0FRFRBMBG) [2**Grounding Bed Sheets California King Grounding Deep Pocket Fitted Sheet Cotton Silver Fiber Grounded Sheets Earth Connected Sheet(72x84x14 Grey)**LAXVAPIU**$80.40**4.2★110 rev](https://www.amazon.com/dp/B0DBKNR2JY) [3**YOUBLAO Grounding Sheets California King Size (72x84x14in) 90% Organic Cotton + 10% Silver Fiber Grounding Sheet for Bed Fitted Grounded Sheet for Improved Sleep Earth Sheets with 15FT Cord Gray**YOUBLAO**$72.54**4.2★85 rev](https://www.amazon.com/dp/B0DNLYZPS5) [4**Grounding Sheets California King Deep Pocket 12% Silver Fiber and 88% Organic Cotton Fitted Earth Grounded Bed Sheets for Improved Sleep (Deep Grey California King - 73x84x15)**PANBMAO**$70.03**3.5★3 rev](https://www.amazon.com/dp/B0GVKT4VXZ) [5**Luxury Tourmaline Grounding Sheets California 20% Silver Fiber 76% Tourmaline Cotton 4% Silk Quality Certified Grounded Well Bed Sheet - Conductive Earth Fitted Sheet for Better Sleep Grey**ECOHEAL**$167.67**4.4★165 rev](https://www.amazon.com/dp/B0FL2S1FPL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Grounding Sheets California King Deep Pocket 12% Silver Fiber and 88% Organic Cotton Fitted Earth Grounded Bed Sheets for Improved Sleep (Beige California King - 73x84x15)**PANBMAO**$85.19**30 rev1mo ago](https://www.amazon.com/dp/B0H2WCJ6QV) [**Grounding Sheets King Silver Fiber and Cotton Conductive Fitted Bed Sheet with Deep Pocket for Bedding Gray Color King Size 78x80x15 MCV01**MCZAROA**$79.47**15 rev2mo ago](https://www.amazon.com/dp/B0H2HJTMPP) [**Grounding Sheets King with Outlet Tester and Grounding Cord Grounded Bed Sheet for Bedding and Bed Gray Color King Size**RestEmbrace Grounding**$168.67**12 rev2mo ago](https://www.amazon.com/dp/B0H1RS5KFX) [**Grounding Sheets California King Size Beige Color for Bedding California King - 73x84x15**PANBMAO**$71.41**1 rev2mo ago](https://www.amazon.com/dp/B0G1N56J4P) [**Grounding Sheets with Test Pen Grounded Fitted Sheet Kit Earth Connected for Bedding Gray Color and KingM Size LMX SLD Sleep**RestEmbrace Grounding**$168.62**18 rev3mo ago](https://www.amazon.com/dp/B0GWM2F733)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Grounding Sheets California King Size Beige Color for Bedding California King - 73x84x15**PANBMAO**$71.41**1.0★**▲ 230%**](https://www.amazon.com/dp/B0G1N56J4P) [**Grounding Sheets California King Deep Pocket 12% Silver Fiber and 88% Organic Cotton Fitted Earth Grounded Bed Sheets for Improved Sleep (Deep Grey California King - 73x84x15)**PANBMAO**$70.03**3.5★**▲ 229%**](https://www.amazon.com/dp/B0GVKT4VXZ) [**Grounding Sheets California King Deep Pocket 12% Silver Fiber and 88% Organic Cotton Fitted Earth Grounded Bed Sheets for Improved Sleep (Beige California King - 73x84x15)**PANBMAO**$85.19**4.6★**▲ 229%**](https://www.amazon.com/dp/B0H2WCJ6QV) [**LAGRATY Gray Calking grounding sheets724**L'AGRATY**$53.52**3.0★**▲ 228%**](https://www.amazon.com/dp/B0GR99WTYR) [**Terraluxe Grounding Sheets Cali King 12% Pure Silver Organic Cotton Cool Soft Fitted Earthing Sheets with Deep Pockets Includes Tester Adapter 2 Cords Connected Bedding**Terraluxe**$167.47**4.7★**▲ 228%**](https://www.amazon.com/dp/B0F37RT5H6)
**~~View all trending →~~**
## **What buyers say about grounding sheets california king**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**16%
*“beautifully made”*
**Sleep Quality**16%
*“Sleeping well”*
**Size-Overall**11%
*“Nice fit”*
**Soft Feel**10%
*“They are soft”*
**Comfort-Overall**9%
*“Comfortable”*
**Advertised Vs Actual Product**8%
*“Works as intended”*
**Durability**4%
*“feels very durable”*
**Efficiency**3%
*“it works really well”*
**Gifting Purpose**3%
*“I also buy it as a gift for friends”*
**Value For Money**2%
*“Great value for the money”*
### **What buyers complain about **
**Functionality-Overall**26%
*“Didn't work”*
**Size-Overall**16%
*“Doesnt fit the California king”*
**Value For Money**5%
*“Buy cheaper”*
**Warmth**3%
*“they are very hot”*
**Moist/Dry**3%
*“Completely dried me out”*
**Connectivity-Overall**3%
*“I disconnected after two week i keep waking up not getting enuf sleep”*
**Ease Of Use**3%
*“Cant use it”*
**Hard Feel**3%
*“Material was irritating/scratchy- not soft at all”*
**Stretchability/Expandability/Elasticity**3%
*“after use the elastic is gone”*
**Quality-Overall**3%
*“Junk”*
### **Top return reasons **
**Functionality-Overall**23%
**Size-Overall**19%
**Advertised Vs Actual Product**12%
**Material Quality**7%
**Defective Material/Parts**5%
**Color**4%
**Comfort-Overall**4%
**Value For Money**3%
**Hard Feel**3%
**Quality-Overall**2%
## **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.
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