I have always thought that I got a better night's sleep on a very firm mattress. But, after my first night on the new topper, it was clear that I was wrong. It was the best, and most restful night of sleep that I can ever recall. In addition, in the weeks that have followed, every night has been consistently the same. This is without doubt, the biggest (except for a significant other...of course) improvement in sleeping I have ever experienced.