never understood this myself but I know others with sleep problems. One used weed to fall asleep, then she started with heavier drugs. Don't know what she's doing now.
I'm starting to see the importance of making new habits. I can't expect urges to go away if I do everything the same, just without fapping.
I haven't had a long enough streak to report any huge results, but I've noticed that I start desiring more interaction after a few days.
Staying away from home helps a lot. Remember to get out of the house, even if its just for a short walk.