I find that my diet affects my sleep as much as anything. I eat lower carb (one carby meal a day allowed, others are "keto" style, I just never could give up carbs completely, I always ended up backsliding) and having a regular sleep schedule, 6-7 hours a night is fine. If I'm just "eating whatever" (and I love carbs and junk food) I'd have to sleep 9-10 hours or I would be a wreck the next day. One thing I have always been blessed with was being able to go to sleep though, only the most stressful times in my life have I ever had insomnia.