This mattress topper was used for two years on a foam hybrid mattress and has plenty of life left. It’s suffered no spills or accidents. The bottom layer is 4” of gel-infused Certi-pur U.S. foam (can be spot cleaned). The upper layer is a 1.5” pillow-top cover with a full, deep elasticized skirt to secure the topper to the mattress. The cover is machine washable, with a 100% cotton top and down alternative fill.
This model was a top Wirecutter pick when we bought it in early 2023. The photo above is of a later version (not our bed!) but it looks the same.