Well hey, some days I just don't sleep at all. Though I don't get paranoid - I just get annoyed because people yell at me for not sleeping. Usually I'm always hyped up on caffiene annd it keeps me up - but on average, I can keep myself up until 5 or 6 a.m.
I did get paranoid about some "black blurs" I started seeing. I freaked out a couple sleepless nights after I came to the wacky conclusion that sleeplessness gives you the ability to see demons. T_T

How I do fall asleep is I lay down, shut my eyes, and focus only on my breaths. Even if it takes awhile and it gets frustrating. I sometimes get up and get some water then keep trying.