DORMEO premium mattress topper (memory foam) twin size

This topper is fine; I bought it to upgrade my mattress. But I was given a good mattress as a gift, so I don't need this topper. It's brand new and has just been tried on the bed. Advanced Comfort - The Dormeo® Premium Mattress Topper includes a layer of Recovery Foam™ for a soft, cradling feel that rejuvenates your existing mattress. Octaspring® Technology - Patented Octaspring® Aerospace technology adapts to your body with hundreds of comfort points, offering targeted support for the back, shoulders, and hips. Breathable Design - Unique Octaspring® airflow system expels heat and brings in fresh air, keeping you comfortably cool up to 8x more than standard memory foam. Smart Zoning - Three distinct body zones provide firmer support for heavier areas, helping maintain spine alignment. Certified Quality - Made with CertiPUR-US certified materials for safety and durability, tested by independent labs. Hypoallergenic Cover - High-performance, moisture-wicking, and machine washable cover for added cleanliness and comfort.