---
title: "king size pillows set of 4 — $1.9M/yr Amazon United States Niche, Score 58/100 - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/king-size-pillows-set-of-4"
last_updated: "2026-07-20T19:14:55.829Z"
locale: en
meta:
  description: "king size pillows set of 4 shows a sweet-spot price point ($42.17 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "king size pillows set of 4 shows a sweet-spot price point ($42.17 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "king size pillows set of 4 — $1.9M/yr Amazon United States Niche, Score 58/100 - Flapen"
---

# **king size pillows set of 4**

**Worth a look**

Shows a sweet-spot price point ($42.17 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 93Growth 20Conversion 76Competition 42Returns 79Price range 87Avg price 95Brand share 42Review moat 12Quality gap 53

**Avg price**

**Incredible****$42.17**

avg listing price — sweet spot $15–$100

**Market size**

**Great****$1.9M**

$1.9M/yr · 605K searches

**Price range**

**Great****$23.24–$108.23**

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

**Returns**

**Great****1.8%**

return rate — above 6% kills the launch gate

**Conversion**

**Great****7.3%**

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

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Competition**

**Okay****60%**

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

**Brand share**

**Okay****80%**

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

**Growth**

**Bad****-9.2%**

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

**Review moat**

**Bad****27,614.48**

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, king size pillows set of 4 is a $1.9M/yr Amazon United States market (605K searches/yr). The top 5 brands hold 80% of demand. Verdict: Worth a look — 58/100.

Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **Market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**50K–60K**</dd><dd>avg 1,500–2,000/product</dd>

<dt>**Revenue / yr**</dt><dd>**$2.1M–$2.5M**</dd><dd>units × avg price</dd>

<dt>**Launch success**</dt><dd>**—**</dd><dd>3 of 3 new (360d)</dd>

<dt>**Conversion rate**</dt><dd>**7.3%**</dd>

<dt>**Avg BSR**</dt><dd>**#54**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**87%**</dd>

<dt>**Sponsored**</dt><dd>**96%**</dd>

<dt>**Out of stock**</dt><dd>**4.4%**</dd>

<dt>**Avg brand age**</dt><dd>**40 months**</dd>

<dt>**Avg seller age**</dt><dd>**181 days**</dd>

</dl>

## **Competition**

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**15 **▼falling

**Sellers**

**24**

**Top-5 brand share**

**80%**

Top 20: 100%

**Top-5 click share**

**60%**

Top 20: 97%

**Open market**

**17%**

- JOLLYVOGUE32% - Utopia Bedding26% - Sasttie13% - MUFEW5% - Beckham Hotel Collection4% - HUXMEYSON4% - Open — no brand owns it (9 brands, 17%)

## **Demand & seasonality**

Weekly Amazon search volume, last 93 weeks — -9.2% search growth over the last 90 days.

15K10KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

[**Open Trend **](https://flapen.com/research/us/home-kitchen/king-size-pillows-set-of-4/trend)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$75K8%$149K12%$224K16%$299K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 23 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![JOLLYVOGUE King Size Pillows Set of 4 for Sleeping Soft and Supportive Bed Pillows with Down Alternative Filling for Side and Back Sleepers Hotel Collection](https://m.media-amazon.com/images/I/319UIsPbiuL.jpg)**JOLLYVOGUE King Size Pillows Set of 4 for Sleeping Soft and Supportive Bed Pillows with Down Alternative Filling for Side and Back Sleepers Hotel Collection**JOLLYVOGUE**$36.99**4.4★22,814 rev](https://www.amazon.com/dp/B0CXWPYQKF) [2![Sasttie Firm King Size Pillows Set of 4 Bed Pillows for Side Back and Stomach Sleepers - Oeko-Tex Certified Supportive Down Alternative Plump Filling - Hotel Quality and Machine Washable 4 Pack](https://m.media-amazon.com/images/I/31q1EcEsiYL.jpg)**Sasttie Firm King Size Pillows Set of 4 Bed Pillows for Side Back and Stomach Sleepers - Oeko-Tex Certified Supportive Down Alternative Plump Filling - Hotel Quality and Machine Washable 4 Pack**Sasttie**$38.38**4.5★6,412 rev](https://www.amazon.com/dp/B0DPMQQJVF) [3![Utopia Bedding Bed Pillows for Sleeping (White) King Size Set of 4 Hotel Pillow Cooling Pillows for Side Back or Stomach Sleepers](https://m.media-amazon.com/images/I/41kymTuKM8L.jpg)**Utopia Bedding Bed Pillows for Sleeping (White) King Size Set of 4 Hotel Pillow Cooling Pillows for Side Back or Stomach Sleepers**Utopia Bedding**$34.02**4.6★15,972 rev](https://www.amazon.com/dp/B0F24LHG8P) [4![JOLLYVOGUE Firm Pillows King Size Set of 4 Washable Supportive Bed Pillows with Oeko-Tex Certified Down Alternative Fill Fluffy Hotel Quality for Back Stomach and Side Sleepers](https://m.media-amazon.com/images/I/31wAsS0bAQL.jpg)**JOLLYVOGUE Firm Pillows King Size Set of 4 Washable Supportive Bed Pillows with Oeko-Tex Certified Down Alternative Fill Fluffy Hotel Quality for Back Stomach and Side Sleepers**JOLLYVOGUE**$36.95**4.4★8,411 rev](https://www.amazon.com/dp/B0D8KJXF5V) [5![Utopia Bedding Bed Pillows for Sleeping King Size (White) Set of 4 Soft & Fluffy Pillow with Down Alternative Filling Cooling Hotel Quality Gusseted Pillow for Back Stomach or Side Sleepers](https://m.media-amazon.com/images/I/41+MplcWLTL.jpg)**Utopia Bedding Bed Pillows for Sleeping King Size (White) Set of 4 Soft & Fluffy Pillow with Down Alternative Filling Cooling Hotel Quality Gusseted Pillow for Back Stomach or Side Sleepers**Utopia Bedding**$45.91**4.5★78,145 rev](https://www.amazon.com/dp/B0F5QBWTL1)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Piwaal Bed Pillows King Size 4-Pack - Down Alternative Plush Fill for Back Stomach & Side Sleepers - Breathable & Supportive Hotel Style Pillows](https://m.media-amazon.com/images/I/31myKSUTD7L.jpg)**Piwaal Bed Pillows King Size 4-Pack - Down Alternative Plush Fill for Back Stomach & Side Sleepers - Breathable & Supportive Hotel Style Pillows**Piwaal**$40.74**2,839 rev7mo ago](https://www.amazon.com/dp/B0G6MXPVS8) [![King Size Bed Pillows Set of 4 Soft & Supportive Down Alternative Microfiber Filling Plush White 36x20 Sleeping Pillows for Side and Back Sleepers Breathable Machine Washable](https://m.media-amazon.com/images/I/31ROpv86heL.jpg)**King Size Bed Pillows Set of 4 Soft & Supportive Down Alternative Microfiber Filling Plush White 36x20 Sleeping Pillows for Side and Back Sleepers Breathable Machine Washable**Celestine**$108.23**67 rev9mo ago](https://www.amazon.com/dp/B0FV99LM1P) [![Basic Beyond Hotel Collection Bed Pillows for Sleeping - King Size Pillows Set of 4 20x36 White](https://m.media-amazon.com/images/I/41czAX2SCtL.jpg)**Basic Beyond Hotel Collection Bed Pillows for Sleeping - King Size Pillows Set of 4 20x36 White**Basic Beyond**$42.83**6,422 rev11mo ago](https://www.amazon.com/dp/B0FL6PFDJY) [![SEMZSOM Bed Pillows for Sleeping King Size Pillows Set of 4 Luxury Hotel Pillows with Soft Fluffy Down Alternative Filling for Back Stomach and Side Sleepers](https://m.media-amazon.com/images/I/41dqAKht72L.jpg)**SEMZSOM Bed Pillows for Sleeping King Size Pillows Set of 4 Luxury Hotel Pillows with Soft Fluffy Down Alternative Filling for Back Stomach and Side Sleepers**SEMZSOM**$38.12**7,969 rev1y ago](https://www.amazon.com/dp/B0FB927P26) [![Utopia Bedding Bed Pillows for Sleeping King Size (White) Set of 4 Soft & Fluffy Pillow with Down Alternative Filling Cooling Hotel Quality Gusseted Pillow for Back Stomach or Side Sleepers](https://m.media-amazon.com/images/I/41+MplcWLTL.jpg)**Utopia Bedding Bed Pillows for Sleeping King Size (White) Set of 4 Soft & Fluffy Pillow with Down Alternative Filling Cooling Hotel Quality Gusseted Pillow for Back Stomach or Side Sleepers**Utopia Bedding**$45.91**78,145 rev1y ago](https://www.amazon.com/dp/B0F5QBWTL1)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![HIMOON Bed Pillows for Sleeping 4 Pack King Size Cooling Pillows Set of 4 Top-end Microfiber Cover for Side Stomach Back Sleepers(Black)](https://m.media-amazon.com/images/I/31eGMCbcKGL.jpg)**HIMOON Bed Pillows for Sleeping 4 Pack King Size Cooling Pillows Set of 4 Top-end Microfiber Cover for Side Stomach Back Sleepers(Black)**HIMOON**$40.11**4.4★**▲ 250%**](https://www.amazon.com/dp/B0GYHC4D7V) [![Piwaal Bed Pillows King Size 4-Pack - Down Alternative Plush Fill for Back Stomach & Side Sleepers - Breathable & Supportive Hotel Style Pillows](https://m.media-amazon.com/images/I/31myKSUTD7L.jpg)**Piwaal Bed Pillows King Size 4-Pack - Down Alternative Plush Fill for Back Stomach & Side Sleepers - Breathable & Supportive Hotel Style Pillows**Piwaal**$40.74**4.3★**▲ 170%**](https://www.amazon.com/dp/B0G6MXPVS8) [![King Size Bed Pillows Set of 4 Soft & Supportive Down Alternative Microfiber Filling Plush White 36x20 Sleeping Pillows for Side and Back Sleepers Breathable Machine Washable](https://m.media-amazon.com/images/I/31ROpv86heL.jpg)**King Size Bed Pillows Set of 4 Soft & Supportive Down Alternative Microfiber Filling Plush White 36x20 Sleeping Pillows for Side and Back Sleepers Breathable Machine Washable**Celestine**$108.23**4.6★**▲ 118%**](https://www.amazon.com/dp/B0FV99LM1P) [![Sasttie Firm King Size Pillows Set of 4 Bed Pillows for Side Back and Stomach Sleepers - Oeko-Tex Certified Supportive Down Alternative Plump Filling - Hotel Quality and Machine Washable 4 Pack](https://m.media-amazon.com/images/I/31q1EcEsiYL.jpg)**Sasttie Firm King Size Pillows Set of 4 Bed Pillows for Side Back and Stomach Sleepers - Oeko-Tex Certified Supportive Down Alternative Plump Filling - Hotel Quality and Machine Washable 4 Pack**Sasttie**$38.38**4.5★**▲ 93%**](https://www.amazon.com/dp/B0DPMQQJVF) [![CozyLux Soft Supportive Bed Pillows for Side and Back Sleepers Oeko-Tex Certified Down Alternative Filling Hotel Quality Fluffy Sleeping Pillow White Standard - 18 x 26 4 Pack](https://m.media-amazon.com/images/I/315FlNnlhbL.jpg)**CozyLux Soft Supportive Bed Pillows for Side and Back Sleepers Oeko-Tex Certified Down Alternative Filling Hotel Quality Fluffy Sleeping Pillow White Standard - 18 x 26 4 Pack**CozyLux**$31.68**4.4★**▲ 90%**](https://www.amazon.com/dp/B0D725G5Z3)

**~~View all trending →~~**

## **Reviews**

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

### **What buyers love **

**Comfort-Overall**17%

*“comfy every night”*

**Soft Feel**13%

*“Feather soft”*

**Cushion**11%

*“The cushion is not bad”*

**Quality-Overall**10%

*“Best Quality”*

**Fluffiness**8%

*“they are fluffy”*

**Value For Money**8%

*“Good Deal”*

**Foam**6%

*“pillows are great”*

**Size-Overall**4%

*“great fit the bed great”*

**Sleep Quality**3%

*“Good night sleep”*

**Advertised Vs Actual Product**2%

*“As advertised”*

### **What buyers complain about **

**Quality-Overall**12%

*“Cheap quality”*

**Fluffiness**11%

*“will not fluff up”*

**Value For Money**8%

*“Not worth half”*

**Comfort-Overall**8%

*“Extremely uncomfortable”*

**Size-Overall**7%

*“To short”*

**Cushion**6%

*“Very flat, no cushion or comfort”*

**Hard Feel**5%

*“A little too soft for me”*

**Body Support**5%

*“Zero neck support”*

**Thickness**4%

*“Too thick”*

**Advertised Vs Actual Product**4%

*“Not as described”*

### **Top return reasons **

**Cushion**26%

**Size-Overall**15%

**Comfort-Overall**9%

**Soft Feel**8%

**Fluffiness**7%

**Advertised Vs Actual Product**7%

**Value For Money**5%

**Quality-Overall**4%

**Hard Feel**3%

**Body Support**2%

## **Common questions**

<dl>

<dt>**Is king size pillows set of 4 profitable to sell on Amazon United States?**</dt><dd>The niche generates $1.9M/yr across 23 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.2%. Flapen's verdict: Worth a look (58/100).</dd>

<dt>**How competitive is the king size pillows set of 4 niche?**</dt><dd>15 brands and 24 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 80% of demand.</dd>

<dt>**What do buyers complain about in king size pillows set of 4?**</dt><dd>Top complaints mined from reviews: Quality-Overall, Fluffiness, Value For Money. The return rate is 1.8%.</dd>

<dt>**When does demand for king size pillows set of 4 peak?**</dt><dd>Demand is steady year-round — the busiest month runs 1.5× the quietest.</dd>

<dt>**What does it cost to enter the king size pillows set of 4 niche?**</dt><dd>Listings span $23.24–$108.23; the average listing price is $42.17 (sweet spot $15–$100). The average incumbent carries 27,614 reviews — the moat a new listing must climb.</dd>

</dl>

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