I've also been able to nap a lot easier these days so I don't feel as sleep deprived as I have in the past. It still comes in waves and most nights I'm not sleeping very well at all actually, but at least my naps (about 3 hours on average) are pretty solid and help keep those zombie-like states I was so often in to a minimum!
Right now it is almost midnight, my stomach is in knots, and my body is tired and sore. My mind is pretty damn awake and I have no true desire to attempt sleep though my eyes feel a little heavy. So yeah, there are still days (like today) that it sucks to be alive but I know the end result is totally worth it! Just a little over a month to go!!