That I still get irritated when someone says "Didn't you used to be a nurse?" because I know ONCE A NURSE, ALWAYS A NURSE and they should too. I had to retire (at the age of 69) because I got SICK,...
Blackout curtains. Definitely. Also I had a fan going, summer and winter, for the white noise. Sleep mask did not work for me because I am horribly claustrophobic. I also found a light snack helped...