Mattresses under $400

5 mattresses under $400 from BedStory, Novilla, Viscoflex and more. Most cost $319 to $399, and half cost less than $340.

Sealy

Queen, Memory Foam, 8 to 10 in

−Cooling not listed: 25 of the 44 here list one

$318.99-27%List: ~~$438.90~~

as of 11/04/2026 02:36 PST - Details

Lucid

Short Queen, Memory Foam, Medium, 8 to 10 in

+Short queen size suits shorter sleepers in a queen footprint

+CertiPUR-US certified memory foam

+Cooling gel memory foam

−Short queen is less common than standard queen

−Memory foam type rather than hybrid coils

$339.99

as of 11/04/2026 00:03 PST - Details

REVO

Queen, Memory Foam, Medium, 8 to 10 in

+CertiPUR-US certified foam

+Breathable cooling cover

+Queen size for couples or larger sleepers

−Memory foam type sleeps warmer than innerspring models

$329.00

as of 11/04/2026 00:53 PST - Details

Nectar

Full, Memory Foam, 8 to 10 in

−Cooling not listed: 25 of the 44 here list one

$399.00

as of 11/04/2026 00:21 PST - Details

Sweetnight

Queen, Memory Foam, Medium, 8 to 10 in

+Cooling feature listed for warmer sleepers

+CertiPUR-US certified foam

+5-zone ergonomic support design

$349.99

as of 11/04/2026 05:36 PST - Details

Compare specs

Size	Type	Firmness	Thickness	Spec score	Price
Queen	Memory Foam		8 to 10 in	n/a	$318.99 as of 11/04/2026 02:36 PST - Details
Short Queen	Memory Foam	Medium	8 to 10 in	n/a	$339.99 as of 11/04/2026 00:03 PST - Details
Queen	Memory Foam	Medium	8 to 10 in	n/a	$329.00 as of 11/04/2026 00:53 PST - Details
Full	Memory Foam		8 to 10 in	n/a	$399.00 as of 11/04/2026 00:21 PST - Details
Queen	Memory Foam	Medium	8 to 10 in	n/a	$349.99 as of 11/04/2026 05:36 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.