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Sleep Innovations 2" Cooling Gel Memory Foam Mattress Topper Twin XL Blue G-TOP-1320A-TX-WHT - Best Buy
3 Inch Cool Gel Memory Foam Mattress Topper Twin XL Size Bed,Removable Soft Cover, Comfort Body Support & Pressure Relief,10 Year Warranty - Walmart.com
Hypoallergenic 3" Gel Memory Foam Mattress Toppers (twin Xl) White : Target