Fap less = Sleep less?

I've noticed that if I don't fap for a few days, I don't seem to need much sleep.  I sleep for 6 to 7 hours and wake up fully awake without needing coffee.  But if I fap a couple of times, I seem to need like 9 hours of sleep the following night.  What's up with this?

lol what would happen if you fapped 4 times a day every day