It is a fair question for what one should do if healthy. Most people today are not wearing masks when sick. So how much protection does an N95 give us vs not wearing a mask at all? If we are healthy, should we bother with masks?
Sleep is primarily preventative, as it plays a role in the immune system. Personally, I haven't been sick in many years and when other people are getting sick I just get tired and sleep a few more hours than usual.
