Sierra Sleep 12 Inch Pocketed Hybrid M59011 Twin Mattress
12-in Twin Hybrid Memory Foam/Coil Blend Mattress in a Box in the Mattresses department at Lowes.com
12″ Essential Plus Mattress | DOCK86
Amazon.com: Twin Mattress 12 inch Gel Memory Foam Mattress Medium Firm Mattresses for Cool Sleep Relieving Pressure Relief CertiPUR-US Certified Mattress in a Box : Home & Kitchen
Twin XL Serta Serene Sky Firm 12 Inch Mattress
Beautyrest 12" BR800 Medium Mattress, Twin | Costco
Amazon.com: Zinus 12 Inch Green Tea Memory Foam Mattress / CertiPUR-US Certified / Bed-in-a-Box / Pressure Relieving, Twin, White : Home & Kitchen