Is full size mattress 5 inch profitable to sell on Amazon United States?

The niche generates $54K/yr across 21 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +22.8%. Flapen's verdict: Skip it (45/100).

How competitive is the full size mattress 5 inch niche?

15 brands and 16 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 79% of demand.

What do buyers complain about in full size mattress 5 inch?

Top complaints mined from reviews: Thickness, Comfort-Overall, Advertised Vs Actual Product. The return rate is 1.4%.

When does demand for full size mattress 5 inch peak?

Demand is steady year-round — the busiest month runs 1.8× the quietest.

What does it cost to enter the full size mattress 5 inch niche?

Listings span $38.84–$178.74; the average listing price is $90.26 (sweet spot $15–$100). The average incumbent carries 6,181 reviews — the moat a new listing must climb.

full size mattress 5 inch

Skip it

A small market ($54K/yr) — this niche doesn't clear our bar today.

Returns

Great1.4%

return rate — above 5% kills the launch gate

Avg price

Great$90.26

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Growth

Good+22.8%

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

Competition

Okay59%

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

Price range

Okay$38.84–$178.74

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

Brand share

Okay79%

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

Conversion

Okay2.3%

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

Review moat

Bad6,181.14

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$54K

$54K/yr · 27K searches

Signals High Price

According to Flapen's Amazon United States niche tracking, full size mattress 5 inch is a $54K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 79% of demand. Verdict: Skip it — 45/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

full size mattress 5 inch market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: $45K–$68K; units × avg price
Conversion rate: 2.3%
Avg BSR: #98
Page quality: 0%
Prime: 81%
Sponsored: 90%
Out of stock: 12.2%
Avg brand age: 30 months
Avg seller age: 200 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 falling

Sellers

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

59%

Top 20: 99%

Open market

16%

FDW28%
EGOHOME27%
Zinus11%
PayLessHere8%
Novilla6%
Best Price Mattress5%
Open — no brand owns it (9 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — +22.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.8×

Open Trend

Top full size mattress 5 inch search terms

5 inch full size mattress8K/yr +34.6%2.8% conv.
full size mattress 5 inch8K/yr +9.2%2.7% conv.
5 inch memory foam3K/yr +18.1%0.2% conv.
5 inch full mattress4K/yr +25.0%2.0% conv.
5 twin mattress firm4K/yr +42.3%0.0% conv.

All search terms

Top full size mattress 5 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.

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

All 21 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

FDW$90.704.3★5,937 rev

EGOHOME Full Size Memory Foam Mattress 5 Inch Green Tea Bed in A Box

EGOHOME$102.234.4★10,700 rev

EGOHOME 5 Inch Twin Mattress for Kids Green Tea Memory Foam Bed in A Box

EGOHOME$70.374.4★10,700 rev

Zinus 5 Inch Twin Green Tea Memory Foam Mattress Medium Firm Feel

Zinus$73.954.4★1,901 rev

FDW$64.484.3★5,937 rev

Newest

by launch date

WhatsBedding 5 Inch Memory Foam Mattress Topper Queen for Back Pain Filled with Flfuffy Soft Breathable Stuffing Thick Supportive Pillow Top Queen Mattress Topper

WhatsBedding$86.511,927 rev

3mo ago

SOMNIKEN 5 Inch Twin Mattress for Kids Cooling Gel Memory Foam Fiberglass Free CertiPUR-US Certified Temperature-Regulating Washable Cover Medium Firm Bed in a Box 75x39x5

SOMNIKEN$75.2924 rev

7mo ago

Tohetsuzp High Density Upholstery Foam Cushion - 5 Thick x 24 x 72 Gel Memory Foam Support Padding for Seat Cushion Replacement DIY Projects Sofa Mattress Support

Tohetsuzp$72.7475 rev

8mo ago

MLILY JAMA 5 Inch Kids Full Size Mattress Memory Foam Medium Firm Made in The USA of US Foam and Global Materials CertiPUR-US Certified 75x54x6 Blue

MLILY$178.749 rev

10mo ago

Novilla Full Mattress 5 Inch Full Size Mattresses with Gel-Infused Memory Foam & Pressure-Relieving Foam for Cool Touch & Spinal Alignment Mattress in a Box CertiPUR-US Certified

Novilla$92.084,803 rev

1y ago

What buyers say about full size mattress 5 inch

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

What buyers love

Comfort-Overall33%

“Mattress is comfortable”

Quality-Overall9%

“Excellent product”

Foam8%

“A really firm mattress”

Value For Money8%

“For the price”

Soft Feel7%

“The fabric is soft”

Size-Overall7%

“True to size”

Advertised Vs Actual Product2%

“As advertised”

Assembly/Installation2%

“Easy install”

Sleep Quality2%

“Sleep quality improved”

Durability1%

“The material looks durable and breathable”

What buyers complain about

Thickness20%

“Not Very Thick”

Comfort-Overall10%

“I will say if your mattress is super uncomfortable”

Advertised Vs Actual Product10%

“Looks nothing like the picture”

Size-Overall9%

“Not true to size”

Hard Feel6%

“Hard as a rock”

Value For Money5%

“50 bucks is to much”

Stretchability/Expandability/Elasticity4%

“expansion could be better”

Quality-Overall3%

“Garbage”

Foam2%

“Well, it's not very good memory foam”

Smell2%

“Smells horrible”

Top return reasons

Size-Overall40%

Thickness16%

Advertised Vs Actual Product10%

Thin7%

Comfort-Overall5%

Value For Money4%

Cushion3%

Stretchability/Expandability/Elasticity2%

Quality-Overall1%

Height1%

Common questions

Is full size mattress 5 inch profitable to sell on Amazon United States?: The niche generates $54K/yr across 21 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +22.8%. Flapen's verdict: Skip it (45/100).
How competitive is the full size mattress 5 inch niche?: 15 brands and 16 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 79% of demand.
What do buyers complain about in full size mattress 5 inch?: Top complaints mined from reviews: Thickness, Comfort-Overall, Advertised Vs Actual Product. The return rate is 1.4%.
When does demand for full size mattress 5 inch peak?: Demand is steady year-round — the busiest month runs 1.8× the quietest.
What does it cost to enter the full size mattress 5 inch niche?: Listings span $38.84–$178.74; the average listing price is $90.26 (sweet spot $15–$100). The average incumbent carries 6,181 reviews — the moat a new listing must climb.