mattress foundation king
Skip itWeak search conversion (1.6%) — this niche doesn't clear our bar today.
Avg price
Good$119.50avg listing price — sweet spot $15–$100
Competition
Good48%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Good73%top-5 brand share — brands hold most of the demand
Growth
Okay+11.9%90-day search growth — must beat 0% to launch
Returns
Okay4.1%return rate — above 5% kills the launch gate
Market size
Okay$119K$119K/yr · 62K searches
Review moat
Bad8,959.09avg incumbent reviews — the moat a new listing must climb
Price range
Bad$60.19–$241.85cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad1.6%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, mattress foundation king is a $119K/yr Amazon United States market (62K searches/yr). The top 5 brands hold 73% of demand. Verdict: Skip it — 41/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
mattress foundation king market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $120K–$149K
- units × avg price
- Conversion rate
- 1.6%
- Avg BSR
- #29
- Page quality
- 0%
- Prime
- 91%
- Sponsored
- 81%
- Out of stock
- 2.1%
- Avg brand age
- 26 months
- Avg seller age
- 199 days
Competition & brand share
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.Brands
17 falling
Sellers
17
Top-5 brand share
73%
Top 20: 100%
Top-5 click share
48%
Top 20: 87%
Open market
21%
- Amazon Basics32%
- ALDRICH14%
- Meliusly13%
- TROZULER8%
- MAF7%
- Zinus6%
Demand
Weekly Amazon search volume, last 22 weeks — +11.9% search growth over the last 90 days.Top mattress foundation king search terms
- mattress foundation king14K/yr
- king size foundation12K/yr
- king mattress foundation12K/yr
- king foundation11K/yr
- king size mattress foundation5K/yr
- king bed foundation base4K/yr
- mattress foundation for king size bed4K/yr
Top mattress foundation 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Amazon Basics Smart Box Spring Bed Base 7-Inch Height Mattress Foundation Tool-Free Easy Assembly King Size Bed Sturdy Support Durable Construction 79 x 75.5 x 7 White
Amazon Basics$130.204.5★38,479 rev
Meliusly Heavy Duty Bunkie Board King Size (76x80) Bed Support Board
Meliusly$130.924.6★2,058 rev
Amazon Basics Smart Box Spring Bed Base 9-Inch Height Sturdy Mattress Foundation Strong Metal Support Tool-Free Easy Assembly King 79L x 75.5W x 9H White
Amazon Basics$136.964.5★38,479 rev
Amazon Basics Smart Box Spring Bed Base 5-Inch Height Mattress Foundation Tool-Free Easy Assembly King 79 x 75.5 x 5 White
Amazon Basics$125.884.5★38,479 rev
ALDRICH 7 Inch Heavy Duty Metal Box Spring Mattress Foundation 3000lbs Max Weight Capacity/Non-Slip/No Noise/Easy Assembly/Easy Clean Cover King
ALDRICH$93.134.2★3,663 rev
Newest
by launch date
Beautyrest Standard King Mattress Foundation
Beautyrest$187.0611 rev
Beautyrest Standard Cal King Mattress Foundation
Beautyrest$122.0711 rev
Golden Home Essentials Heavy Duty Bunkie Board King 10mm (76 x 80) Non-Slip Grip Low-Profile Mattress Support for Slats or Box Spring Quiet Moisture-Resistant Bed Board
Golden Home Essentials$109.82287 rev
TROZULER 7 Inch King Size Box Spring Heavy Duty Metal Mattress Foundation 3000 lbs Capacity High Profile Noise-Free Easy Assembly with Fabric Cover
TROZULER$61.802,132 rev
TROZULER 5 Inch King Size Box Spring Heavy Duty Metal Mattress Foundation 3000 lbs Capacity Low Profile Noise-Free Easy Assembly with Fabric Cover
TROZULER$61.332,132 rev
Trending
90-day click momentumBeautyrest Standard Cal King Mattress Foundation
Beautyrest$122.074.2★
Amazon Basics Smart Box Spring Bed Base 9-Inch Height Mattress Foundation Tool-Free Easy Assembly Metal Frame Cal King 83 x 71 x 9 White
Amazon Basics$142.884.5★
Beautyrest Standard King Mattress Foundation
Beautyrest$187.064.2★
TROZULER 9 Inch King Size Box Spring Heavy Duty Metal Mattress Foundation 3000 lbs Capacity High Profile Noise-Free Easy Assembly with Fabric Cover
TROZULER$68.924.3★
ZINUS 9 Inch No Assembly Metal Box Spring Cool Mattress Foundation Sturdy Metal Structure Split King White
Zinus$241.854.7★
What buyers say about mattress foundation king
What buyers praise and complain about, mined from review topics.What buyers love
“Easy assemble”
“The bed is sturdy”
“The quality is solid”
“Cant beat the price”
“True to size”
“Just as described”
“Very comfortable”
“Easy Peasy”
“I could easily store things under my bed”
“add comfortable height to the bed”
What buyers complain about
“To small”
“Very crappy quality”
“Broke”
“VERY difficult to assemble”
“NOT STURDY”
“Stops sagging”
“No instructions”
“Cheap price”
“Too high”
“Product is extremely heavy”
Top return reasons
Common questions
- Is mattress foundation king profitable to sell on Amazon United States?
- The niche generates $119K/yr across 32 tracked products. 5 of 8 products launched in the last 360 days are still selling. 90-day search growth is +11.9%. Flapen's verdict: Skip it (41/100).
- How competitive is the mattress foundation king niche?
- 17 brands and 17 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 73% of demand.
- What do buyers complain about in mattress foundation king?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 4.1%.
- What does it cost to enter the mattress foundation king niche?
- Listings span $60.19–$241.85; the average listing price is $119.50 (sweet spot $15–$100). The average incumbent carries 8,959 reviews — the moat a new listing must climb.