An extra-firm mattress makes a difference in your alignment and sleep quality. Our picks for the best extra-firm mattresses include Plank Firm, Titan Plus and others.

$799.99 at Mattress Firm (Save $799.01) Sleepy's By Sealy Memory Foam Medium Mattress, Queen Save 72% on this queen size Sleepy’s by Sealy memory foam mattress at Mattress firm today.

Queen is the most popular mattress size in the US: big enough for two (plus pets), ample room for one and, if you shop smart, ...

Mattress Firm is also offering bundle and save deals ... All mattress prices are shown for queen-size mattresses, but most discounts can be applied to other sizes. The Nectar Luxe features a ...

But even if you don’t think you’re a firm-mattress person ... the prices given below are for queen-size mattresses, but all are available in different sizes.) Update on March 18, 2025 ...