Full, Memory Foam, Under 8 in
Mattresses under $75
17 mattresses under $75 from Ftopbtb and Auruge. Most cost $40 to $43, and half cost less than $40.
+Full size fits many standard beds
+Cooling memory foam
+Medium firm support for pressure relief
−Under 8 inches thick, thinner than typical mattresses
$39.99
as of 11/05/2026 02:39 PST - DetailsProduct details
4 Inch Full Mattress with Cooling Memory Foam, Full Size Mattress in a Box | Medium Firm for Support & Pressure Relief,
$39.99as of 11/05/2026 02:39 PST - Details
View on AmazonPros
+Full size fits many standard beds
+Cooling memory foam
+Medium firm support for pressure relief
+Ships boxed for easy home delivery
Cons−Under 8 inches thick, thinner than typical mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Medium Firm, Under 8 in
+Cooling foam and breathable comfort layer
+Memory foam construction
+Medium firm feel for pressure relief
−Under 8 inches thick, thinner than typical mattresses
$39.89
as of 11/05/2026 02:40 PST - DetailsProduct details
6 Inch Twin Size Mattress, Twin Memory Foam Mattress with Cooling Foam & Breathable Comfort Layer, Pressure Relief
$39.89as of 11/05/2026 02:40 PST - Details
View on AmazonPros
+Cooling foam and breathable comfort layer
+Memory foam construction
+Medium firm feel for pressure relief
+Twin size fits single beds
+Ships boxed for easy home delivery
Cons−Under 8 inches thick, thinner than typical mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Under 8 in
+Twin size fits single beds and small rooms
+Gel memory foam with a cooling design
+CertiPUR certified foam
−Thickness is under 8 inches, thinner than typical mattresses
$39.89
as of 11/04/2026 22:58 PST - DetailsProduct details
FTOPBTB Twin Size Mattress, 6 Inch Gel Memory Foam Mattress in a Box, Fiberglass Free, Breathable for Cooler Sleep
$39.89as of 11/04/2026 22:58 PST - Details
View on AmazonPros
+Twin size fits single beds and small rooms
+Gel memory foam with a cooling design
+CertiPUR certified foam
+Ships boxed for easy delivery
+Fiberglass free construction
Cons−Thickness is under 8 inches, thinner than typical mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Hybrid, Medium Firm, 8 to 10 in
+CertiPUR-US certified foam for low chemical emissions
+Cooling feature for a cooler sleep surface
+Ships boxed for easy home delivery
−Thickness range is 8 to 10 inches, not a single exact height
$44.89
as of 11/05/2026 01:42 PST - DetailsProduct details
Twin Mattress 10 Inch Hybrid Memory Foam Mattress in a Box with Individual Pocket Innerspring for Motion Isolation &
$44.89as of 11/05/2026 01:42 PST - Details
View on AmazonPros
+CertiPUR-US certified foam for low chemical emissions
+Cooling feature for a cooler sleep surface
+Ships boxed for easy home delivery
+Medium firm feel suits side and back sleepers
+Individual pocket innerspring for motion isolation
Cons−Thickness range is 8 to 10 inches, not a single exact height
How pros and cons are picked (About: Disclaimer)About this product
Full, Memory Foam, Medium Firm, Under 8 in
+Full size fits standard full beds
+Green tea gel cooling design
+CertiPUR certified foam
−Only 4 inches thick, thinner than typical mattresses
$42.99
as of 11/04/2026 23:01 PST - DetailsProduct details
Full Size Memory Foam Mattresses, 4 Inch Mattress in A Box with Cooling Green Tea Gel with Fiberglass Free, Medium
$42.99as of 11/04/2026 23:01 PST - Details
View on AmazonPros
+Full size fits standard full beds
+Green tea gel cooling design
+CertiPUR certified foam
+Medium firm feel
+Ships boxed for easy delivery
Cons−Only 4 inches thick, thinner than typical mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Firm, Under 8 in
+Twin size fits single beds and small rooms
+Waterproof cover helps protect against spills
+Cooling foam is listed for a cooler sleep surface
−Firm feel may not suit side sleepers who want cushioning
−Under 8 inches of thickness is thinner than most mattresses
$43.00
as of 11/04/2026 23:22 PST - DetailsProduct details
HomJoones Twin Mattress, 6 Inch Waterproof Foam Twin Size Mattress in a Box | Firm with Cooling Foam & Breathable
$43.00as of 11/04/2026 23:22 PST - Details
View on AmazonPros
+Twin size fits single beds and small rooms
+Waterproof cover helps protect against spills
+Cooling foam is listed for a cooler sleep surface
+Firm feel suits those who want a firm surface
+Ships boxed for easy delivery to home
Cons−Firm feel may not suit side sleepers who want cushioning
−Under 8 inches of thickness is thinner than most mattresses
How pros and cons are picked (About: Disclaimer)About this product
Queen, Hybrid, Medium Firm
+Queen size fits standard queen bed frames
+CertiPUR-US certified foam
+Cooling features listed for a cooler sleep
$12.99
as of 11/04/2026 22:50 PST - DetailsProduct details
EZOAZ Hybrid Replace the Queen Pillowcase, Medium Firm Hybrid Mattress in a Box, Motion Isolation Pocket Spring &
$12.99as of 11/04/2026 22:50 PST - Details
View on AmazonPros
+Queen size fits standard queen bed frames
+CertiPUR-US certified foam
+Cooling features listed for a cooler sleep
+Medium firm feel suits many sleep styles
+Hybrid construction combines foam and springs
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Medium Firm, Under 8 in
+CertiPUR-US certified foam
+Cooling gel memory foam layer
+Medium firm feel
−Thin profile offers less cushioning than thicker mattresses
$39.89
as of 11/05/2026 02:04 PST - DetailsProduct details
YskdhfczQ Twin Size Mattress, 6 Inch Twin Gel Memory Foam Mattress for Pressure Relief & Cool Comfort Sleep, Medium
$39.89as of 11/05/2026 02:04 PST - Details
View on AmazonPros
+CertiPUR-US certified foam
+Cooling gel memory foam layer
+Medium firm feel
+Ships boxed for easy home delivery
+Thin 6 inch profile suits low bed frames
Cons−Thin profile offers less cushioning than thicker mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Medium Firm, Under 8 in
+CertiPUR-US certified foam
+Cooling gel memory foam layer
+Medium firm feel
−Thin profile offers less cushioning than thicker mattresses
$39.89
as of 11/05/2026 02:04 PST - DetailsProduct details
YskdhfczQ 6 Inch Twin Mattress, Gel Memory Foam Mattress in a Box for Cooling Night Sleep & Pressure Relief, Medium
$39.89as of 11/05/2026 02:04 PST - Details
View on AmazonPros
+CertiPUR-US certified foam
+Cooling gel memory foam layer
+Medium firm feel
+Ships boxed for easy home delivery
+Thin 6 inch profile suits low bed frames
Cons−Thin profile offers less cushioning than thicker mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Medium Firm, Under 8 in
+Twin size fits standard twin bed frames
+CertiPUR-US certified foam
+Memory foam conforms to the body's shape
−Thin 6-inch profile offers less cushioning
$39.99
as of 11/04/2026 22:58 PST - DetailsTwin, Memory Foam, Under 8 in
+CertiPUR certified foam for lower chemical emissions
+Cooling feature listed for a cooler sleep surface
+Breathable design listed for airflow
−Under 8 inch thickness is thinner than typical twin mattresses
$39.89
as of 11/05/2026 00:46 PST - DetailsTwin, Memory Foam, Medium Firm, Under 8 in
+CertiPUR-US certified memory foam
+Cooling green tea gel layer
+Medium firm feel for pressure relief
−Under 8 inches thick, thinner than typical mattresses
$39.89
as of 11/05/2026 02:40 PST - DetailsProduct details
6 Inch Twin Mattress | Gel Memory Foam Mattress in a Box with Cooling Green Tea Gel | Medium Firm | Pressure Relief &
$39.89as of 11/05/2026 02:40 PST - Details
View on AmazonPros
+CertiPUR-US certified memory foam
+Cooling green tea gel layer
+Medium firm feel for pressure relief
+Twin size fits single beds and bunk beds
+Ships boxed for easy home delivery
Cons−Under 8 inches thick, thinner than typical mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Medium Firm, Under 8 in
+Twin size fits single beds and small rooms
+CertiPUR-US certified memory foam
+Cooling gel memory foam for a cool sleep surface
−Thin at under 8 inches
−Thin profile offers less cushioning than thicker mattresses
$39.99
as of 11/05/2026 00:19 PST - DetailsTwin, Memory Foam, Medium Firm, Under 8 in
+Twin size fits single beds and small rooms
+CertiPUR-US certified memory foam
+Cooling gel memory foam construction
−Thin at under 8 inches
−Thin profile offers less cushioning than thicker mattresses
$39.89
as of 11/05/2026 00:19 PST - DetailsProduct details
MTSVMP 6 Inch Twin Mattress, Gel Memory Foam Mattress in a Box with Green Tea Gel, Medium Firm, Pressure Relief &
$39.89as of 11/05/2026 00:19 PST - Details
View on AmazonPros
+Twin size fits single beds and small rooms
+CertiPUR-US certified memory foam
+Cooling gel memory foam construction
+Medium firm feel for side and back sleepers
+Ships boxed for easy delivery
Cons−Thin at under 8 inches
−Thin profile offers less cushioning than thicker mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Medium Firm, Under 8 in
+Cooling feature listed for a warmer sleep
+Memory foam conforms to the body for pressure relief
+Ships boxed for easy home delivery
−Under 8 inch thickness is thinner than typical twin mattresses
$39.89
as of 11/05/2026 00:31 PST - DetailsProduct details
NXZMDEMY Twin Mattress, 6 Inch Gel Memory Foam Twin Mattress in a Box | Cooling Comfort Support & Pressure Relief,
$39.89as of 11/05/2026 00:31 PST - Details
View on AmazonPros
+Cooling feature listed for a warmer sleep
+Memory foam conforms to the body for pressure relief
+Ships boxed for easy home delivery
+Medium firm feel suits side and back sleepers
Cons−Under 8 inch thickness is thinner than typical twin mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Under 8 in
+CertiPUR-US certified foam
+Cooling gel memory foam layer
+Ships boxed for easy home delivery
−Thin profile offers less cushioning than thicker mattresses
$39.89
as of 11/05/2026 02:04 PST - DetailsProduct details
YskdhfczQ 6 Inch Twin Size Mattress, Gel Memory Foam Mattress in a Box | Twin Size Mattress with Cool Gel Memory Foam
$39.89as of 11/05/2026 02:04 PST - Details
View on AmazonPros
+CertiPUR-US certified foam
+Cooling gel memory foam layer
+Ships boxed for easy home delivery
+Thin 6 inch profile suits low bed frames
Cons−Thin profile offers less cushioning than thicker mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin, Hybrid, Medium Firm, 8 to 10 in
+Twin size fits standard twin bed frames
+CertiPUR-US certified foam
+Cooling features listed for a cooler sleep
$44.89
as of 11/04/2026 22:58 PST - DetailsProduct details
FTOPBTB Twin Mattress 10 Inch, Twin Size Hybrid Mattress in a Box, Medium Firm Cooling Memory Foam Bed Mattresses with
$44.89as of 11/04/2026 22:58 PST - Details
View on AmazonPros
+Twin size fits standard twin bed frames
+CertiPUR-US certified foam
+Cooling features listed for a cooler sleep
+Medium firm feel suits many sleep styles
+Hybrid construction combines foam and springs
How pros and cons are picked (About: Disclaimer)About this product
Compare specs
| mattress | Size | Type | Firmness | Thickness | Spec score | Price |
|---|---|---|---|---|---|---|
| Full | Memory Foam | Under 8 in | n/a | $39.99 as of 11/05/2026 02:39 PST - Details | ||
| Twin | Memory Foam | Medium Firm | Under 8 in | n/a | $39.89 as of 11/05/2026 02:40 PST - Details | |
| Twin | Memory Foam | Under 8 in | n/a | $39.89 as of 11/04/2026 22:58 PST - Details | ||
| Twin | Hybrid | Medium Firm | 8 to 10 in | n/a | $44.89 as of 11/05/2026 01:42 PST - Details | |
| Full | Memory Foam | Medium Firm | Under 8 in | n/a | $42.99 as of 11/04/2026 23:01 PST - Details | |
| Twin | Firm | Under 8 in | n/a | $43.00 as of 11/04/2026 23:22 PST - Details | ||
| Queen | Hybrid | Medium Firm | n/a | $12.99 as of 11/04/2026 22:50 PST - Details | ||
| Twin | Memory Foam | Medium Firm | Under 8 in | n/a | $39.89 as of 11/05/2026 02:04 PST - Details | |
| Twin | Memory Foam | Medium Firm | Under 8 in | n/a | $39.89 as of 11/05/2026 02:04 PST - Details | |
| Twin | Memory Foam | Medium Firm | Under 8 in | n/a | $39.99 as of 11/04/2026 22:58 PST - Details |
Before you buy
- Mattress Types and Thickness, Explained
- Mattress Firmness Labels, Explained
- Mattress Firm Return Policy and Sleep Trial
- Sam's Club Shipping and Delivery, Explained
- Wayfair Financing and Credit Card, Explained
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