38 inch mattress

FDW 12 inch Mattress Gel Memory Foam Mattress for Cool Sleep & Pressure Relief/CertiPUR-US Certified/Bed-in-a-Box/Pressure Relieving

Continental Sleep, 7-Inch Medium Firm Tight top High Density Foam Mattress.

Continental Sleep, 8-Inch Medium Firm Tight top High Density Foam Mattress.

Zinus 6 Inch Foam and Spring Hybrid Mattress [New Version], Twin, Medium Firmness, Durable Support, Certified Safe Foams & Fabric, Mattress in A Box

Ego Platinum 14" Firm Copper Infused Gel Memory Foam Mattress

Lucid Comfort Collection Firm 10" Gel Memory Foam Mattress

Serta Five Star Mattress - 12" Plush Pillow Top

Dyonery Extra Firm & Firm Memory Foam Mattress 12/14/16 Inch Dual-Side Bed Mattress High-Density for Back Pain Relief,CertiPUR-US Certified

Milliard 4 Inch Premium Tri-fold Memory Foam Mattress

FDW 14 inch Mattress Gel Memory Foam Mattress for Cool Sleep & Pressure Relief/CertiPUR-US Certified/Bed-in-a-Box/Pressure Relieving

Wuleitex 10 Inch Medium Cooling Gel Memory Foam Mattress with Breathable Cover

Dyonery Firm Flippable Mattress 8-14 Inch Medium Firm-Extra Firm Memory Foam Mattress for Back Pain, Dual Sides Use,CertiPUR-US Certified

The Purple Mattress® 9.25" Medium Gel Foam Mattress with 2" GelFlex Grid, White

Lucid Comfort Collection 12" Memory Foam Mattress

Dyonery Mattress in a Box, Reversible Memory Foam Bed with Washable Cover, CertiPUR-US Certified Firm & Medium Support

Dyonery Extra Firm Mattress, Memory Foam Mattress in a Box, Dual Sides Flippable Mattress for Back Pain

Wuleitex 10 inches Medium Memory Foam Mattress for Free Sleep Position

Yaheetech 12IN Gel Memory Foam Mattress with Green Tea Scent, Cooling Technology and 3 Foam Layers for Bedroom & Guest Room

Ego Platinum 14" Medium Copper Infused Gel Memory Foam Mattress

Sailvan Mattress 10 Inch, Medium Firm Mattress in a Box, Hybrid Spring Gel Memory Foam Mattress, CertiPUR-US Certification

Wuleitex 10 inch mattress, cooling memory foam mattress for cool sleep, 5-zone ergonomic decompression support, medium hardness

Dyonery Extra Firm Memory Foam Mattress Cool Green Tea/Gel Dual-Side Firm Bed Mattress High-Density for Back Pain Relief,CertiPUR-US Certified

Dyonery Memory Foam Mattress, Washable Removable Cover with Breathable Cooling Gel, Modern Comfort for Kids & Guest Room, Safe Bed