This is a high-quality memory foam topper, my husband is a larger man and he is enjoying this so much... it was jus what he needed for his new mattress that didn't quite have the feel we were hoping for.  You will not be disappointed with this topper!!!! the overall size is a little off but i'm sure the manufacturing process is a bit difficult giving that foam is foam... and its still fits nicely on top of our 12" mattress and using deep pocket sheets that we purchased here WF for TwinXL beds that are made to fit up to a 14" thick mattress.  Very pleased and we will buy this brand again when we need to replace other toppers for our childernes beds and vacation and rental properties as well!!