Did you know koalas sleep over 18 hours a day? Lazy little bastards.
I sleep no longer than 7-8 hours a night and I don't nap during the day
I sleep no longer than 10 hours in a 24-hour period including naps
I sleep no longer than 12 hours in a 24-hour period including naps
I sleep longer than 12 hours in a 24-hour period including naps