Great mattress!  It's hard find truly firm mattresses nowadays and this one fits the bill. Firm but still supportive.   I also like that it's 14" since as Im getting older, it was harder and harder to get out of the shorter mattresses.  This mattress was easy to unfold and fluff up and fits perfectly in my king size platform bed.   I did place a 1.5" foam topper on it just mainly for the comfort of my partner who prefers a softer bed, but it's still perfect and I'm now getting a great night sleep once again.  Love Wayfair, the products and delivery options.