As a long time tempur-pedic owner, I was ambivalent about the Caspar mattress. Also read that many people took several weeks to acclimate to their new Caspar mattress.  I’m just over two weeks in and can happily report that you don’t need to spend a fortune to have a premium sleep experience.  The 100 day guarantee Caspar offered was important to me, but there’s no way I’m returning it!  Now if I can just figure out what to do with the old Stearns & Foster mattress.