California King, Hybrid, Medium Firm, 11 to 12 in
Mattresses under $400
15 mattresses under $400 from BedStory, Novilla, Viscoflex and more. Most cost $320 to $399, and half cost less than $370.
+California King size for wide sleeping space
+CertiPUR certified foam
+Cooling gel memory foam
$319.99-26%List: $429.99
as of 11/04/2026 06:40 PST - DetailsProduct details
Upgraded Luxury 12 In Hybrid California King Mattress in a Box, Medium Firm | Cooling Gel Memory Foam & Pocket Springs,
$319.99as of 11/04/2026 06:40 PST - Details
View on AmazonPros
+California King size for wide sleeping space
+CertiPUR certified foam
+Cooling gel memory foam
+Pocket springs in hybrid build
+Ships boxed, 11 to 12 inches thick
How pros and cons are picked (About: Disclaimer)About this product
Queen, Memory Foam, Firm, 11 to 12 in
−Cooling not listed: 25 of the 44 here list one
$374.21-25%List: $499.00
as of 11/04/2026 02:37 PST - DetailsProduct details
Serta Sleeptrue Firm 12" Queen Memory Foam Mattress in a Box | CertiPUR-US certified, 10 Year Limited Warranty,
$374.21as of 11/04/2026 02:37 PST - Details
View on AmazonCompared with the 15 mattresses on this pageCons
−Cooling not listed: 25 of the 44 here list one
How pros and cons are picked (About: Disclaimer)About this product
Full, Hybrid, 11 to 12 in
+CertiPUR-US certified foam
+Cooling feature for a cooler sleep surface
+Hybrid construction combines foam and springs
$339.99-15%List: $399.99
as of 11/04/2026 00:52 PST - DetailsProduct details
Resspry Full XL Mattress, 12 Inch Gel Memory Foam Sprung Hybrid Mattress | Cooling and Pressure Relief for Breathable
$339.99as of 11/04/2026 00:52 PST - Details
View on AmazonPros
+CertiPUR-US certified foam
+Cooling feature for a cooler sleep surface
+Hybrid construction combines foam and springs
+11 to 12 inch thickness
How pros and cons are picked (About: Disclaimer)About this product
Queen, Memory Foam, Medium Firm, 11 to 12 in
−Cooling not listed: 25 of the 44 here list one
$369.99-14%List: $429.99
as of 11/03/2026 22:48 PST - DetailsProduct details
EGOHOME Queen 12 inch Memory Foam Mattress for Back Pain Relief Medium Firm | Fiberglass Free, Copper Gel Infused,
$369.99as of 11/03/2026 22:48 PST - Details
View on AmazonCompared with the 15 mattresses on this pageCons
−Cooling not listed: 25 of the 44 here list one
How pros and cons are picked (About: Disclaimer)About this product
King, Hybrid, Medium Firm, 11 to 12 in
+King size fits couples and larger sleepers
+Medium firm feel for balanced support
+Hybrid build combines foam and pocketed coils
−Thick profile may need deeper bed frame clearance
$384.47-10%Was: $427.19
as of 11/04/2026 08:42 PST - DetailsProduct details
yuanco King Size Mattress 12 Inch Medium Firm Hybrid Mattress in a Box | Medium Firm Memory Foam, Pocketed Coils,
$384.47as of 11/04/2026 08:42 PST - Details
View on AmazonPros
+King size fits couples and larger sleepers
+Medium firm feel for balanced support
+Hybrid build combines foam and pocketed coils
+Cooling feature listed for a cooler sleep surface
+Ships boxed for easier delivery
Cons−Thick profile may need deeper bed frame clearance
How pros and cons are picked (About: Disclaimer)About this product
King, Memory Foam, 11 to 12 in
+CertiPUR-certified memory foam
+Ships boxed for easy home delivery
+Cooling design with gel memory foam
−Heavier than thinner king mattresses
$369.99
as of 11/04/2026 00:28 PST - DetailsProduct details
Novilla King Size Mattress, 12 Inch Gel Memory Foam King Mattress in a Box | Pressure Relieving & Cooling Comfort,
$369.99as of 11/04/2026 00:28 PST - Details
View on AmazonPros
+CertiPUR-certified memory foam
+Ships boxed for easy home delivery
+Cooling design with gel memory foam
+11 to 12 inch thickness for a substantial profile
Cons−Heavier than thinner king mattresses
How pros and cons are picked (About: Disclaimer)About this product
Twin XL, Memory Foam, Medium Firm, 11 to 12 in
+CertiPUR-US certified foam
+Cooling gel layer
+Pressure-relieving memory foam construction
−Twin XL size fits one sleeper only
$310.11
as of 11/04/2026 07:36 PST - DetailsProduct details
Vibe 12-Inch Gel Memory Foam Mattress - Cooling Gel - Pressure-Relieving Support - Medium-Firm Feel - CertiPUR-US
$310.11as of 11/04/2026 07:36 PST - Details
View on AmazonPros
+CertiPUR-US certified foam
+Cooling gel layer
+Pressure-relieving memory foam construction
+Medium firm feel
+Twin XL length suits taller sleepers
Cons−Twin XL size fits one sleeper only
How pros and cons are picked (About: Disclaimer)About this product
Queen, Hybrid, Firm, 11 to 12 in
+Queen size fits standard queen bed frames
+Hybrid construction combines foam and pocket springs
+Shipped boxed for easy home delivery
−Firm feel may not suit softer sleep preferences
−Thickness of 11 to 12 inches is slightly below typical hybrids
$329.99
as of 11/04/2026 12:41 PST - DetailsProduct details
BedStory 12 Inch Firm Queen Mattress, Cooling Hybrid Mattresses in a Box with Cooling Gel & Pocket Springs for Back
$329.99as of 11/04/2026 12:41 PST - Details
View on AmazonPros
+Queen size fits standard queen bed frames
+Hybrid construction combines foam and pocket springs
+Shipped boxed for easy home delivery
+Cooling feature listed for a cooler sleep surface
+CertiPUR certified foam
Cons−Firm feel may not suit softer sleep preferences
−Thickness of 11 to 12 inches is slightly below typical hybrids
How pros and cons are picked (About: Disclaimer)About this product
Queen, Hybrid, Soft, 11 to 12 in
+Hybrid build combines gel memory foam and pocket springs
+CertiPUR-US certified foam
+Full 12 inch thickness
−Soft feel may not suit those needing firm support
$359.99
as of 11/03/2026 22:50 PST - DetailsProduct details
Elverock Queen Size 12 Inch Hybrid Mattress in a Box, for Back Pain Relief | Gel Memory Foam & Pocket Springs, Plush
$359.99as of 11/03/2026 22:50 PST - Details
View on AmazonPros
+Hybrid build combines gel memory foam and pocket springs
+CertiPUR-US certified foam
+Full 12 inch thickness
+Soft feel suits side sleepers
+Shipped boxed for easy home delivery
Cons−Soft feel may not suit those needing firm support
Compared with the 15 mattresses on this page−Cooling not listed: 25 of the 44 here list one
How pros and cons are picked (About: Disclaimer)About this product
Full, Hybrid, Medium, 11 to 12 in
+Full size suits single sleepers or small guest rooms
+Hybrid build combines foam and springs
+Medium firm feel suits a wide range of sleepers
−Hybrid construction adds weight for moving upstairs
$399.97
as of 11/03/2026 23:33 PST - DetailsProduct details
Hybrid Full Size Mattress, 12in Memory Foam Mattress in a Box, Cooling Gel | 365-Night Trial & Forever Warranty,
$399.97as of 11/03/2026 23:33 PST - Details
View on AmazonPros
+Full size suits single sleepers or small guest rooms
+Hybrid build combines foam and springs
+Medium firm feel suits a wide range of sleepers
+Ships boxed for easy delivery to home
+Thickness of 11 to 12 inches is typical for hybrids
Cons−Hybrid construction adds weight for moving upstairs
Compared with the 15 mattresses on this page−Cooling not listed: 25 of the 44 here list one
How pros and cons are picked (About: Disclaimer)About this product
Queen, Memory Foam, 11 to 12 in
+CertiPUR-US certified foam for a material standard
+Ships boxed for easier delivery to a home
+Queen size fits standard queen bed frames
$349.00
as of 11/04/2026 02:41 PST - DetailsProduct details
Signature Design by Ashley 12 Inch Memory Foam Queen Mattress in a Box | Stretch knit cover and 12-inch profile,
$349.00as of 11/04/2026 02:41 PST - Details
View on AmazonPros
+CertiPUR-US certified foam for a material standard
+Ships boxed for easier delivery to a home
+Queen size fits standard queen bed frames
+Memory foam contours to the body
+Stretch knit cover for a flexible fabric layer
Compared with the 15 mattresses on this page−Cooling not listed: 25 of the 44 here list one
How pros and cons are picked (About: Disclaimer)About this product
Full, Hybrid, Medium Firm, 11 to 12 in
+Full size suits single sleepers and guest rooms
+Hybrid design with gel memory foam
+Medium firm feel
$369.99
as of 11/04/2026 00:16 PST - DetailsProduct details
MOOA Full Size Mattress, 12 Inch Full Hybrid Mattress in a Box, Medium Firm | Cool-Touch Cover, Gel Memory Foam &
$369.99as of 11/04/2026 00:16 PST - Details
View on AmazonPros
+Full size suits single sleepers and guest rooms
+Hybrid design with gel memory foam
+Medium firm feel
+Shipped boxed for easy setup
+Nearly 12 inches thick
How pros and cons are picked (About: Disclaimer)About this product
Twin, Memory Foam, Firm, 11 to 12 in
$349.00
as of 11/04/2026 00:21 PST - DetailsProduct details
Nectar 12” Memory Foam Mattress, Twin, Firm Feel, 1-Year Trial | Contouring Memory Foam, Cooling Top Layer, Back Pain &
$349.00as of 11/04/2026 00:21 PST - Details
View on AmazonAbout this product
King, Hybrid, Extra Firm, 11 to 12 in
−Cooling not listed: 25 of the 44 here list one
$399.99
as of 11/03/2026 22:54 PST - DetailsProduct details
Extra Firm King Mattress 12 inch Hybrid Mattresses in a Box Extra Lumbar & Hip Support - No Sagging Bed Hotel
$399.99as of 11/03/2026 22:54 PST - Details
View on AmazonCompared with the 15 mattresses on this pageCons
−Cooling not listed: 25 of the 44 here list one
How pros and cons are picked (About: Disclaimer)About this product
Queen, Memory Foam, Medium Firm, 11 to 12 in
$379.99
as of 11/04/2026 00:28 PST - DetailsProduct details
Novilla Queen Size Mattress 12 Inch, Gel Memory Foam Mattress Queen | with AiryFlow Cooling System for Cool Night,
$379.99as of 11/04/2026 00:28 PST - Details
View on AmazonAbout this product
Compare specs
| mattress | Size | Type | Firmness | Thickness | Spec score | Price |
|---|---|---|---|---|---|---|
| California King | Hybrid | Medium Firm | 11 to 12 in | n/a | $319.99 as of 11/04/2026 06:40 PST - Details | |
| Queen | Memory Foam | Firm | 11 to 12 in | n/a | $374.21 as of 11/04/2026 02:37 PST - Details | |
| Full | Hybrid | 11 to 12 in | n/a | $339.99 as of 11/04/2026 00:52 PST - Details | ||
| Queen | Memory Foam | Medium Firm | 11 to 12 in | n/a | $369.99 as of 11/03/2026 22:48 PST - Details | |
| King | Hybrid | Medium Firm | 11 to 12 in | n/a | $384.47 as of 11/04/2026 08:42 PST - Details | |
| King | Memory Foam | 11 to 12 in | n/a | $369.99 as of 11/04/2026 00:28 PST - Details | ||
| Twin XL | Memory Foam | Medium Firm | 11 to 12 in | n/a | $310.11 as of 11/04/2026 07:36 PST - Details | |
| Queen | Hybrid | Firm | 11 to 12 in | n/a | $329.99 as of 11/04/2026 12:41 PST - Details | |
| Queen | Hybrid | Soft | 11 to 12 in | n/a | $359.99 as of 11/03/2026 22:50 PST - Details | |
| Full | Hybrid | Medium | 11 to 12 in | n/a | $399.97 as of 11/03/2026 23:33 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
- Wayfair Rewards Membership, Explained
- IKEA Financing and Credit Cards, Explained
- Mattress Firm Price Match, Explained














