A little over a week ago I decided to look at getting a different type of mask. I knew there was room for improvement, especially after having some bad nights. I also wanted to have at least one spare mask around. Trying to get through even one night without it would be very difficult.
A couple of weeks ago I started tracking how I felt after a night of sleep using a calendar. I’ve since graduated to maintaining an Excel spreadsheet that logs this information using a scale of zero to five (zero = severe fatigue, five = well rested). A couple of days ago I started checking the morning’s effectiveness stats and recording that in the same spreadsheet.