My Stages to Sleep

I usually have four stages I go through before I'm asleep. Well, technically three stages as the fourth stage is sleep, but I still like to consider it four stages. None of these are scientific or any of that, just observances I've noticed in my lifetime.
First Stage - I'm pretty much wide awake, laying in bed, and staring at the ceiling. This is usually the longest stage and goes for about an hour. I know actual sleep science says if you do this, you should actually get up and do something for a little bit and then try again to go back to bed. However, I find getting up and doing something often leads to me having another hour of having to stare at the ceiling.
Second Stage - I'm starting to drift out of the conscious world. I can feel sleep coming on and often, various events from my day begin to replay themselves in my head with odd dream-like twists to them. I still have enough mental awareness to move my body around though if it begins to feel uncomfortable in its position and I can hear and understand sounds around me. This usually lasts five to fifteen minutes.
Third Stage - I'm very close to being asleep, but I'm not quite there. I'm aware that there's a world outside of me and the sounds I hear are being brought into my early dreams. This stage is usually very short, like two to four minutes. It's also the most important stage for me (and I'll get to the reasoning in a minute).
Fourth Stage - Sweet, wonderful, blissful sleep. I love it, possibly more than sex (I might be over-exaggerating a little bit due to my current predicament, but again, more on that in a second).
If you interrupt me during the first stage, say with something like a phone call, I'll probably answer it and be just fine. During the second stage, I might be a little annoyed, but not much. Really all it does is put me back in the first stage for like fifteen more minutes (depending on what the call is about of course). Call me during the fourth stage and you're lucky if I wake up for (and even if I do, chances are I won't remember doing so in the morning). But if you interrupt me during stage three, and it's not some sort of emergency, so help me God I hope you choke to death on your phone. In fact, if you were anywhere near me, I might be inclined to take that phone and shove it up your ass.
I know it may seem like I'm overreacting, but nine times out of ten, when I get pulled out of stage three, it takes me HOURS to even feel remotely tired again. I don't know why this is, but it's always the case. Like last night when someone decided to text me with some inane bullshit just as I was opening the gate to enter dreamland. And I've told this person before not to text or call me so late.
I've been using my phone for an alarm since about the first day I got a cell phone and noticed it had an alarm on it. I don't want to buy an alarm clock, the phone should work fine. Also, I do like to have my phone on in case of emergencies (not that I'm the person anyone should call if there's an emergency, but you never know). However, I think I'm finally just going to get an actual alarm clock.
And I know this is a whiny note/blog/whatever, but I'm literally at the point of wanting to hurt someone. Badly. Having decent sleep effects how I do in class (or if I even make it to class a lot). And I know it sounds weird, but I'm tired of being a shitty student. Not that most my classes don't seem relatively easy, but that relativity is in proportion to showing up (and probably staying awake as well).
Now, I'm going to go see if I can't get in a sixty minute nap before I have to be up for class. Which is probably a dumb thing for me to do as I'm likely to sleep through any alarm I set, but right now, I'm willing to take the risk.