Best Extra Firm Mattresses

Nectar Queen Mattress 12 Inch - Medium Firm Gel Memory Foam - Cooling Comfort Technology - 365-Night Trial - Forever Warranty,White

Gojef Queen Mattress, 12 Inch Queen Size Mattresses, Hybrid Mattress in a Box with Independent Spring, Soft and Comfortable, Pressure Relief, CertiPUR-US Certified, Plush

Signature Design by Ashley Queen Size Chime 12 Inch Medium Firm Hybrid Mattress with Cooling Gel Memory Foam

Signature Design by Ashley Queen Size Chime 12 Inch Medium Firm Memory Foam Mattress with Green Tea & Charcoal Gel

KOANTTI Full Size Mattress, 12 Inch Hybrid Full Mattress in a Box with Memory Foam & Individual Pocket Spring for Edge Support, Pressure Relief, Medium Firm,CertiPUR-US.

PurrJoys Firm Full Mattress,12 Inch Cooling-Gel Memory Foam and Pocket Spring Hybrid Mattress, Full Size Mattress in a Box, CertiPUR-US Certified, Firm, Full Bed Mattress

Swbvs Firm Double Mattress, 12 Inch Memory Foam Full Size Mattress, Full Bed Mattress in a Box Pressure Relief & Firm Mattress Double Size

Vesgantti Full Mattress 10 Inch Innerspring Multilayer Hybrid Full Mattress - Ergonomic Design with Memory Foam and Pocket Spring Mattress Full Size, Medium Firm Feel, Grey

Coolvie Queen Mattress Firm, Strong Coils Hybrid Mattress for Extra Lumbar & Hip Support, Cooling Knit Fabric Cover- CertiPUR-US Certified / 80x60x12, 12 Inch Mattress Queen Size in a Box

EGOHOME 14 inch Firm King Mattress, Memory Foam Mattress with Cooling Cover, Bed in a Box, CertiPUR-US Certified, Breathable and Supportive, Made in USA, 76x80x14 Black