---
title: "Heated Mattress Pad California King Size — $221K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/heated-mattress-pad-california-king-size"
last_updated: "2026-08-10T00:56:43.658Z"
locale: en
meta:
description: "Niche score 44/100 · $221K/yr market · 34K searches/yr · $88.93 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $221K/yr market · 34K searches/yr · $88.93 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Heated Mattress Pad California King Size — $221K/yr Amazon US Niche (2026) - Flapen"
---
# **heated mattress pad california king size**
**Skip it**
Soft demand (-70.1% this quarter) — this niche doesn't clear our bar today.
Market size 42Growth 0Conversion 76Competition 58Returns 19Price range 62Avg price 79Brand share 44Review moat 57Quality gap 48
**Avg price**
**Great****$88.93**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****7.3%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$50.60–$130.36**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Good****1,233.22**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$221K**
$221K/yr · 34K searches
**Returns**
**Bad****6.6%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-70.1%**
90-day search growth — must beat 0% to launch
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, heated mattress pad california king size is a $221K/yr Amazon United States market (34K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jan–Oct–Nov–Dec. Verdict: Skip it — 44/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **heated mattress pad california king size market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$178K–$222K**
- units × avg price
- **Conversion rate**
- **7.3%**
- **Avg BSR**
- **#55**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **78%**
- **Out of stock**
- **21.7%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **204 days**
## **Competition & brand share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **▲rising
**Sellers**
**14**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**50%**
Top 20: 100%
**Open market**
**14%**
- Sealy32% - Serta21% - Bwarm9% - Homemate8% - Reaks8% - HOMTEC7% - Open — no brand owns it (4 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -70.1% search growth over the last 90 days.
3K2KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 16.9×
[**Open Trend **](https://flapen.com/research/us/home-kitchen/heated-mattress-pad-california-king-size/trend)
## **Top heated mattress pad california king size search terms**
- **heated mattress pad california king**13K/yr-76.5%5.7% conv. - **california king heated mattress pad**10K/yr-69.1%6.3% conv. - **heated mattress pad cal king**5K/yr-48.1%6.3% conv. - **cal king heated mattress pad**6K/yr-68.7%4.9% conv. [**All search terms **](https://flapen.com/research/us/home-kitchen/heated-mattress-pad-california-king-size/search-terms)
## **Top heated mattress pad california king size 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%5%$11K10%$22K15%$33K20%$44K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Serta Heated Mattress Pad Cal King Size - Electric Mattress Pad 10 Heat Setting Controller Auto Shut Off Timer Deep Elastic Pocket Up to 17 Mattress ETL Certified Machine Wash Cal King White**Serta**$94.79**4.5★1,526 rev](https://www.amazon.com/dp/B0CKWQK14B) [2**Sealy Heated Mattress Pad Cal King Size Dual Control with 10 Heat Settings**Sealy**$97.82**4.4★1,898 rev](https://www.amazon.com/dp/B0B28VRJKW) [3**California King Size Electric Heated Mattress Pad - Bed Warmer with Memory & Preheat Functions 12 Heat Settings Dual Control for 1-12 Hours Auto Off Lighted Button**Reaks**$125.63**4.5★5,437 rev](https://www.amazon.com/dp/B09XTM82D6) [4**HOMTEC Heated Mattress Pad California King Size 12 Heat Preheat & Memory**HOMTEC**$74.42**4.7★79 rev](https://www.amazon.com/dp/B0FKMKN414) [5**Heated Mattress Pad California King Size Dual Control Electric Mattress Pad Electric Bed Warmer with 10 Heat Settings and & 1-12 Hours Auto Shut Off Fit Up to 8-21 Deep Pocket Machine Washable**Valthie**$94.14**4.7★823 rev](https://www.amazon.com/dp/B0D5HRNSYT)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Serta Multi-Zone Heated Mattress Pad Dual Controllers for Personalized Body & Foot Warmth 10 Heat Settings Auto Shut-Off Soft Microfiber Machine Washable 15 Deep Pocket California King Size**Serta**$124.20**186 rev9mo ago](https://www.amazon.com/dp/B0FYPLVD2J) [**HOMTEC Heated Mattress Pad California King Size 12 Heat Preheat & Memory**HOMTEC**$74.42**79 rev9mo ago](https://www.amazon.com/dp/B0FKMKN414) [**ACCU-WARMTH Heated Mattress Pad California King Quilted Electric Mattress Pad Bed Warmer with Dual Controllers 6 Heat Settings 10-Hour Auto Off 17 Inch Deep Pocket Machine Washable White**ACCU-WARMTH**$51.32**287 rev10mo ago](https://www.amazon.com/dp/B0FH6MCB5Z) [**Yuurom Heated Mattress Pad California King with Memory&Preheat Functions**Yuurom**$76.66**387 rev11mo ago](https://www.amazon.com/dp/B0FLN8T41F) [**Homemate Heated Mattress Pad California King - 3D Knitted Jacquard Electric Mattress Pad Cal King Bed Warmer with Dual Controller 10 Heated Setting - Auto Off 8 Hours Fit Up to 30 Inch 84x72**Homemate**$50.60**1,708 rev1y ago](https://www.amazon.com/dp/B0F9YVHWSG)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Homemate Heated Mattress Pad California King - 3D Knitted Jacquard Electric Mattress Pad Cal King Bed Warmer with Dual Controller 10 Heated Setting - Auto Off 8 Hours Fit Up to 30 Inch 84x72**Homemate**$50.60**4.4★**▲ 1000%**](https://www.amazon.com/dp/B0F9YVHWSG) [**Homemate Heated Mattress Pad California King Size 5 Heated Setting Coral Fleece Electric Mattress Pad King Bed Warmer with Dual Controller & Auto Off 10 Hours Fit Up to 21 Inch 84x72**Homemate**$65.35**4.4★**▲ 273%**](https://www.amazon.com/dp/B0BBV1J71J) [**HOMTEC Heated Mattress Pad California King Size 12 Heat Preheat & Memory**HOMTEC**$74.42**4.7★**▲ 269%**](https://www.amazon.com/dp/B0FKMKN414) [**Bwarm Electric Heated Mattress Pad Cal King Size 72 x 84 Bed Warmer 9 Heat Settings 1-12 Hours Auto Off Deep Pocket Fast Heating Machine Washable Soft and Cozy**Bwarm**$59.61**4.3★**▲ 75%**](https://www.amazon.com/dp/B0D5LMNM1T) [**California King Size Electric Heated Mattress Pad - Bed Warmer with Memory & Preheat Functions 12 Heat Settings Dual Control for 1-12 Hours Auto Off Lighted Button**Reaks**$125.63**4.5★**▲ 45%**](https://www.amazon.com/dp/B09XTM82D6)
**~~View all trending →~~**
## **What buyers say about heated mattress pad california king size**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Warmth**29%
*“It got nice and warm”*
**Heating**16%
*“The pad heats quickly”*
**Foam**8%
*“We love our Heated Mattress Pad”*
**Efficiency**7%
*“Works great”*
**Alarm/Timer Accuracy**5%
*“I especially like the timer which allows you to set the number of hours you want it on”*
**Quality-Overall**4%
*“NICE QUALITY”*
**Advertised Vs Actual Product**4%
*“Works exactly how you would expect”*
**Comfort-Overall**4%
*“comfortable”*
**Functionality-Overall**4%
*“Otherwise the item works fine”*
**Value For Money**3%
*“Good value”*
### **What buyers complain about **
**Heating**27%
*“Defective New Heating Element”*
**Durability**16%
*“doesnt last”*
**Functionality-Overall**13%
*“DOES NOT WORK”*
**Quality-Overall**9%
*“Junk”*
**Warmth**8%
*“I do wish there was more heat at the foot area”*
**Instructions/User Manual/Troubleshooting**6%
*“Lack of directions”*
**Washability**3%
*“Never wash it”*
**Thickness**3%
*“Also, a little thin so you feel the heating element too much”*
**Alarm/Timer Accuracy**3%
*“the timer doesnt work so it doesnt turn off unless you manually turn it off”*
**Cushion**2%
*“there is not enough padding to conceal the cables”*
### **Top return reasons **
**Heating**26%
**Size-Overall**12%
**Advertised Vs Actual Product**9%
**Functionality-Overall**8%
**Defective Material/Parts**6%
**Comfort-Overall**6%
**Product Condition**3%
**Warmth**3%
**Cushion**3%
**Thin**3%
## **Common questions**
- **Is heated mattress pad california king size profitable to sell on Amazon United States?**
- The niche generates $221K/yr across 18 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is -70.1%. Flapen's verdict: Skip it (44/100).
- **How competitive is the heated mattress pad california king size niche?**
- 10 brands and 14 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in heated mattress pad california king size?**
- Top complaints mined from reviews: Heating, Durability, Functionality-Overall. The return rate is 6.6% — above our launch gate.
- **When does demand for heated mattress pad california king size peak?**
- Demand peaks in Jan–Oct–Nov–Dec; the busiest month runs 16.9× the quietest.
- **What does it cost to enter the heated mattress pad california king size niche?**
- Listings span $50.60–$130.36; the average listing price is $88.93 (sweet spot $15–$100). The average incumbent carries 1,233 reviews — the moat a new listing must climb.
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