It is definitely softmedium and inflates quickly. I am currently still allowing the allotted time for proper inflation to sleep on it. It is at 11  12 inches  at 29 12 hours. I have no idea what some comments are talking about with an odor It is on a flat surface and it is inflating slightly bent I do hope it the bottom flattens  when we sleepwhen we sleepWhich is my reason for the review of the 3. It is worth the sale price I bought it ,but not the original price.