I am thrilled. I thought I didn't like memory foam but when Betsy helped me find one that was "firm" it made all the difference. I'm elderly and not computer savy. Betsy's patience and competence and Wayfair's system for ordering, and being able to track my delivery was superb from begining to end . Many thanks from a very pleased customer. 
PS. I woke up this morning with no more back pain . Yippie !