I'm a light sleeper. I've never been one of those people who can put their head down and suddenly everything disappears. Nighttime is the time I get most scared anxious or worried. In those darker moments before waking or sleeping is when I feel most I don't know I can turn on myself and my imagination can take me dark places.
Don't let the fear of the time it will take to accomplish something stand in the way of your doing it. The time will pass anyway we might just as well put that passing time to the best possible use.