Here's a tip for those sleepless nights. I take my smartphone (android) but it can be anything to connect to data...AA speaker tapes..."Odomology" (youtube) speaker tapes, Father Martin "Chalk Talks" (you tube)...a pair of comfortable ear bud speakers...just lay in the dark and listen. You'll doze off eventually. There are thousands and thousands of these recordings available online. Check them out !
If you do fall asleep, it will be a peaceful restoring sleep. Your subconcious mind will soak up the info like a sponge. You dont have to do anything. Just listen.
Dont get any simpler.
DD
P.S. It doesnt work with music. Music gets you "hyped" up.