6. Don't Nap - but if You do, Limit It
Naps can be very tempting, especially if you've had a poor night's sleep, but do avoid them if you can. If you really must take a nap, limit it to 30 minutes. If you sleep too long during the day, you won't be sleepy when you need to go to bed. That will probably mean you don't sleep well, which then makes you want to take a nap … and so the cycle continues.