I fully expected I'd need time for my new mattress to break in before it was comfortable for me, which I was dreading. But nope, it's been perfectly comfortable from day one (and my back is grateful)! I'd fallen in love with a friend's old old Stearns and Foster mattress (did I mention I have back pain?), so I decided to buy my own, and what a difference it's made. I'd had a 15 year old Sleep Number before, which had broken down and was extremely painful to sleep on. The Stearns and Foster I fell in love with was at least that old and wasn't broken down, thus my decision to purchase one, and look forward to many years of use. From the smooth online ordering to the delivery timing and customer service, I couldn't be happier, so I'd definitely recommend investing in this mattress (for reference, I have preferred a soft mattress before this).