--- title: "Is King Box Spring 5 Inch Worth Selling on Amazon US?" canonical_url: "https://flapen.com/research/us/home-kitchen/king-box-spring-5-inch" last_updated: "2026-09-18T19:52:27.780Z" locale: en meta: description: "King Box Spring 5 Inch Amazon US estimated sales data: $29,000/month, +9.9% growth. Worth selling? See the verdict." "og:description": "King Box Spring 5 Inch Amazon US estimated sales data: $29,000/month, +9.9% growth. Worth selling? See the verdict." "og:title": "Is King Box Spring 5 Inch Worth Selling on Amazon US?" --- OverviewNichesProductsSearch terms Flapen Score ## King Box Spring 5 Inch against its category The dotted line is the Home & Kitchen average. Past it, King Box Spring 5 Inch is stronger. Inside it, weaker.Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality GapThis niche Category average [**See the method **](https://flapen.com/science) Market ## The King Box Spring 5 Inch market on Amazon at a glance Shoppers on Amazon United States searched for King Box Spring 5 Inch 79K times last year and spent an estimated $348K. The top 5 brands take 62% of clicks. Flapen scores it 50 out of 100, a Maybe. 01 · Demand ### An estimated 5.1% of those searches ended in a purchase. Shoppers searched for this 79K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 5.1% of those searches ended in a purchase. Searches in the last 90 days moved +9.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $348K a year.
Searches, last 12 months
79K
Growth, 90 days vs prior 90
+9.9%
Conversion, latest week
5.1%
Market size, estimated
$348Ka year
Peak month
July1.3× the quietest month
Top search term
king box spring 5 inch46K searches a year
02 · Price ### A sale here is worth $86.32. Listings sell for $86.32 on average, from $61.33 to $136.45. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 250 to 500 of them. At $86.32 that is $22K to $43K a year per listing.
Average price
$86.32inside the $15 to $100 sweet spot
Price range
$61.33–$136.45
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
4K–5K
Units per listing a year
250–500
Revenue per listing a year
$22K–$43K
Returns
4.9%of orders · Amazon United States median 2.1%
03 · Entry bar ### The bar here is ads and reviews. 93% of listings pay for placement with sponsored ads. 89% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #37 within Mattresses & Box Springs. It carries 5,106 reviews at 4.37 stars, so a new listing needs social proof before a better product.
Sponsored listings
93%
Prime listings
89%
Out of stock, average day
0.0%
Average rank
#37in Mattresses & Box Springs
Average rating
4.37 starsAmazon United States average 4.42 stars
Average reviews
5,106per listing
Listings tracked
27
04 · Newcomers ### 5 of last year's 10 launches cleared the first-year sales bar. 10 products launched here in the last 12 months. 5 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 26 months on average, so a newcomer is not facing entrenched names.
Launched, last 12 months
10
Successful launches
5Amazon's first-year sales bar
Average brand age
26 months
Products ## Top King Box Spring 5 Inch products & what they sell for Every tracked product: its share of the shelf, its reviews, and its price.**Sign in to see the products** The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone. [Sign in](https://flapen.com/auth/login) Competition ## Competition: brands, sellers & click share The top 5 products take 59% of clicks. Leaders hold, but buyers still shop past them. Brands**25 **▲rising Sellers**28** Top-5 brand share**62%** Top 20: 95% Top-5 click share**59%** Top 20: 93% Open market**32%**- Brand 117% - Brand 216% - Brand 313% - Brand 49% - Brand 57% - Brand 66% Demand ## King Box Spring 5 Inch search demand Weekly searches over the year, seasonality beneath. Pick a range.3M6M1YAll2K2KSpike '24Black Friday '24Prime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay No pronounced peak months · busiest ÷ quietest = 1.3× Search terms ## Top King Box Spring 5 Inch search terms shoppers use The exact words shoppers type, with yearly volume, growth, and conversion.90D1Y - **king box spring 5 inch**46K/yr+1.7%4.6% conv. - **5 inch box spring king**11K/yr+22.6%6.0% conv. - **king size box spring 5 inch**8K/yr+16.0%5.6% conv. - **5 inch king box spring**8K/yr+10.2%5.9% conv. - **box spring king 5 inch**4K/yr+89.6%6.0% conv. - **5 box spring king**3K/yr+20.8%7.2% conv. Reviews and returns ## What reviews say buyers love and hate about King Box Spring 5 Inch We read the reviews and the return reasons for every product selling here.**36%**of positive reviews mention “Assembly/Installation”**16%**of negative reviews mention “Assembly/Installation”**4.9%**of orders come back > **“Hard to put together” **_A buyer, on “Assembly/Installation”16% of negative reviews mention the same topic_ Every topic ### Every topic buyers talk about, one row each. Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote. 17 topics**Negative****Positive****Assembly/Installation**+2.3416%36%12% of returns“Easy assemble”**Quality-Overall**−0.0210%11%3% of returns“High quality, easy to build”**Size-Overall**−0.1313%3%42% of returns“too small”**Durability**−0.077%3%“It broke”**Strength**+0.9610%“The frame is sturdy”**Advertised Vs Actual Product**+0.162%4%8% of returns“Product as advertised”**Value For Money**+0.486%“Excellent price”**Instructions/User Manual/Troubleshooting**—3%3%“Instructions difficult to read”**Height**+0.072%2%12% of returns“Had to send it back because it made the bed too tall”**Sags/Sinks**−0.023%“The mattress began to sink after 2 months to one side”**Ease Of Use**+0.333%“Quick & Easy”**Mounting**−0.013%“Missing screws”**Defective Material/Parts**−0.033%8% of returns“Most of the screws were stripped”**Functionality-Overall**—2% of returnsReturn reason only. No review mentions it.**Weight Heavy**—2% of returnsReturn reason only. No review mentions it.**Material Quality**—1% of returnsReturn reason only. No review mentions it.**Mechanism Issues**—1% of returnsReturn reason only. No review mentions it.Expand all rows Keep looking ## Related niches Niches in the same category that score near this one. Research these next. [All Home & Kitchen niches](https://flapen.com/research/us/home-kitchen/niches) [

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