Amazon.com: Twin Mattress, 8 Inch Memory Foam Mattress Bed in a Box, Medium, Green Tea and Cooling Gel Infused CertiPUR-US Certified, Made in USA : Home & Kitchen
Amazon.com: Linenspa 8 Inch Memory Foam and Spring Hybrid Mattress - Medium Firm Feel - Bed in a Box - Quality Comfort and Adaptive Support - Breathable - Cooling - Guest and
Sealy 8" Memory Foam Mattress-in-a-box With Cool & Clean Cover - Full : Target