The Essential Twin Memory Foam Mattress by Casper. The item "The Essential Twin Memory Foam Mattress by Casper" is in sale since Monday, August 12, 2019. This item is in the category "Home & Garden\Furniture\Beds & Mattresses\Mattresses". The seller is "brgar-70" and is located in Lynwood, California. This item can't be shipped, the buyer must pick up the item.