full size mattress memory foam 12 inch
Worth a lookShows no brand lock-in (top 5 brands take 33% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Brand share
Incredible33%top-5 brand share — no brand owns this niche
Competition
Incredible20%top-5 click share — an open shelf
Returns
Incredible1.0%return rate — above 5% kills the launch gate
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Good$172.98avg listing price — sweet spot $15–$100
Conversion
Okay3.6%search→purchase rate — share of searches ending in a sale
Review moat
Okay1,977.17avg incumbent reviews — the moat a new listing must climb
Market size
Okay$229K$229K/yr · 37K searches
Growth
Bad-3.9%90-day search growth — must beat 0% to launch
Price range
Bad$98.76–$295.17cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, full size mattress memory foam 12 inch is a $229K/yr Amazon United States market (37K searches/yr). The top 5 brands hold 33% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 58/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
full size mattress memory foam 12 inch market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $173K–$216K
- units × avg price
- Conversion rate
- 3.6%
- Avg BSR
- #273
- Page quality
- 0%
- Prime
- 69%
- Sponsored
- 91%
- Out of stock
- 25.6%
- Avg brand age
- 15 months
- Avg seller age
- 189 days
Competition & brand share
Clicks spread well past the top 5 (20% combined) — an open shelf where new products get seen.Brands
51 rising
Sellers
65
Top-5 brand share
33%
Top 20: 74%
Top-5 click share
20%
Top 20: 56%
Open market
63%
- Novilla12%
- Luxysea6%
- Generic5%
- PayLessHere5%
- Zinus5%
- PurrJoys4%
Demand & seasonality
Weekly Amazon search volume, last 99 weeks — -3.9% search growth over the last 90 days.Peak months: Jul, Aug · busiest ÷ quietest = 2.6×
Top full size mattress memory foam 12 inch 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
12 Inch Green Tea Full Size Memory Foam Mattress Bed-in-a-Box Medium Firm Mattress CertiPUR-US Certified Breathable Bed Mattress for Cooler Sleep Supportive & Pressure Relief Full
PayLessHere$162.604.3★593 rev
PurrJoys Full Mattress 12 Inch Cooling-Gel Memory Foam and Pocket Spring Hybrid Mattress Full Size Mattress in a Box CertiPUR-US Certified Medium Firm Double Mattress
PurrJoys$167.954.4★625 rev
Zinus 12 Inch Full Green Tea Memory Foam Mattress Medium Firm Feel
Zinus$234.453.7★4,672 rev
Rakoide 12 Inch Full Size Mattress Hybrid Full Mattress in a Box Memory Foam Mattress with Pocket Springs Medium Firm Pressure Relief & Motion Isolation CertiPUR US Certified Mattress
Rakoide$228.544.2★23 rev
Novilla 12 Inch Full Size Mattress in a Box Gel Memory Foam Mattress
Novilla$184.344.4★5,392 rev
Newest
by launch dateRakoide 12 Inch Full Size Mattress Hybrid Full Mattress in a Box Memory Foam Mattress with Pocket Springs Medium Firm Pressure Relief & Motion Isolation CertiPUR US Certified Mattress
Rakoide$228.5423 rev
REJUSLEEP 12 Inch Full Size Mattress Hybrid Mattress in a Box Cooling Gel Memory Foam and Individual Pocket Springs for Pressure Relief CertiPUR-US Certified (Full 12 inch Medium)
REJUSLEEP$222.0739 rev
CRYREINA Full Size Mattress Full Mattresses in a Box 12 Inch Hybrid Mattresses with Individually Pocket Spring for Pressure Relief Medium Firm Breathable
CRYREINA$144.0940 rev
Puzdaz Full Size Mattress 12 Inch Full Mattress - Memory Foam & Individually Pocket Coils Springs Pressure Relief Motion Isolation Edge Support CertiPUR-US Certified Medium Firm
Puzdaz$159.8621 rev
Gojef home Full Size Mattress 12 Inch Hybrid Memory Foam Mattress in a Box with Pocket Springs Medium Firmness Pressure Relief & Motion Isolation CertiPUR-US Certified
Gojef home$153.4850 rev
Trending
90-day click momentumREJUSLEEP 12 Inch Full Size Mattress Hybrid Mattress in a Box Cooling Gel Memory Foam and Individual Pocket Springs for Pressure Relief CertiPUR-US Certified (Full 12 inch Medium)
REJUSLEEP$222.074.7★
Rakoide 12 Inch Full Size Mattress Hybrid Full Mattress in a Box Memory Foam Mattress with Pocket Springs Medium Firm Pressure Relief & Motion Isolation CertiPUR US Certified Mattress
Rakoide$228.544.2★
PUBPLON Full Size Mattress 12 Hybrid Full Mattress in a Box Medium Firm Memory Foam & Pocket Springs for Pressure Relief Motion Isolation CertiPUR-US Certified Fiberglass Free 365 Night Trial
PUBPLON$189.924.8★
AHLAYN Full Size Mattress 12 Inch Hybrid Full Mattress in a Box with Memory Foam and Pocket Spring for Pressure Relief & Comfort Sleep & Zoned Support Medium Firm CertiPUR-US
AHLAYN$146.534.0★
Puzdaz Full Size Mattress 12 Inch Full Mattress - Memory Foam & Individually Pocket Coils Springs Pressure Relief Motion Isolation Edge Support CertiPUR-US Certified Medium Firm
Puzdaz$159.864.3★
What buyers say about full size mattress memory foam 12 inch
What buyers praise and complain about, mined from review topics.What buyers love
“Comfortable Comfortable Comfortable”
“The memory foam feels supportive”
“Money well spent”
“Quality mattress”
“EXTREMELY SOFT”
“Fit perfectly”
“Installation is simple”
“No sagging”
“As advertised”
“No odor”
What buyers complain about
“Hard As A Rock”
“I keep waking up so uncomfortable”
“it sinks in the middle”
“Bad quality”
“Small”
“Never fully expanded”
“Not as described”
“Not solid enough”
“not thick like said you sink right in it”
“Not a good memory foam”
Top return reasons
Common questions
- Is full size mattress memory foam 12 inch profitable to sell on Amazon United States?
- The niche generates $229K/yr across 70 tracked products. 43 of 48 products launched in the last 360 days are still selling. 90-day search growth is -3.9%. Flapen's verdict: Worth a look (58/100).
- How competitive is the full size mattress memory foam 12 inch niche?
- 51 brands and 65 sellers compete. The top 5 products take 20% of clicks and top 5 brands hold 33% of demand.
- What do buyers complain about in full size mattress memory foam 12 inch?
- Top complaints mined from reviews: Hard Feel, Comfort-Overall, Sags/Sinks. The return rate is 1.0%.
- When does demand for full size mattress memory foam 12 inch peak?
- Demand peaks in Jul–Aug; the busiest month runs 2.6× the quietest.
- What does it cost to enter the full size mattress memory foam 12 inch niche?
- Listings span $98.76–$295.17; the average listing price is $172.98 (sweet spot $15–$100). The average incumbent carries 1,977 reviews — the moat a new listing must climb.