Twin XL Mattress

I purchased this Marsail NS1 Massage Adjustable Base with Mattress Set, Twin XL Adjustable Bed Frame + 14-inch Cooling Gel Memory Foam Mattress, Dual Motor Bed Frame with Wireless Remote, CertiPUR-US Certified from Amazon but mattress is to thick so I ordered a thinner mattress to replace this 14 inch mattress. It is basically brand new and only used for about two weeks from Jan 26 purchase date.