The Chime 10” Hybrid Mattress is 8 out of 10 in the comfort level.  It is firmer than you would think a “Medium” mattress would be—that is ok, with time, it should relax some.  It is manageable re moving it off the bed frame even for a 5ft, 70+ woman by myself.  Last night, I slept like a baby on my new mattress.
The reason for the 4 star only is that it is not 10”—after 48 hrs, it is only 9” in height.
This is the first time I have ordered a mattress on line—I will tell you—don’t hesitate, you will find this mattress, surprisingly comfortable!