Not sleeping enough was on of my major problems: 0-4h sleep per day for a long period after OM1 and OM2 and even when I was sleeping more, the quality was bad (sweating, talking, wakening, turning around...). I had to ask help from a psychiatrist because it was making me dysfunctional in my daily life and got prescribed an SSRI that is bad antidepressant but was proven excellent to get back my sleep. That said, I don't like and certainly do not recommend drugs; in my case this was necessary. I still do but reduced the dose.
With W we get used to drink lightly BUT with every meal and every night which became a sort of addiction. However, alcohol though it helps to get to sleep it deteriorates further the quality as it is known to cause urination and dehydration. I am planning to stop for a while alcohol and coffee just to see the effects.
Physical activity is key: I used to do sports at semi-pro level and hitting back the gym so I can play my old sport was the best reward. I also try to do as much as I can in the garden. My mind finds peace while I rake franticly leaves for hours, or split logs. All this stress is channelled to something useful for my body and my mind and adds easily some extra hours of sleep.