At the beginning it's not really like you can't sleep but more like you don't want to. Every day you feel less and less sleepy during the times you would normally feel the most sleepy and tired. Eventually it comes to the point where you just don't want to sleep but you just end up doing so because you feel obligated to to the rising sun. Some times you feel so tired that you just want to go to sleep but once you're in bed you're wide awake and just end up staying awake for another 5 hours. Eventually the more you stay up the weirder it gets. When you try to talk you can't remember the correct words and are left fumbling words constantly and just standing there going "uh... uh... uh...". One minute you could be laughing and conversing with others like normal, and then immediately blank and space out and just stand there while your mind is either day dreaming, or just completely blank. Your alarm clock goes off in the morning and you constantly hit the snooze button only to wake up an hour later. It soon turns into you thinking you've hit the snooze 3 or 4 times but it turns out to be 10-12 times and it's an hour and a half to 2 hours later. Your body self-consiously moves for you and turns off the snooze. It'll then turn into an all out memory loss. You stand up to do something and immediately forget what it was. You go to the bathroom and come back to your bed and then wake up wondering if what you just experience was you actually going to the bathroom or a dream because it seems so vauge and obscure. Like a memory that you are trying to remember. And then you notice your wet hands and realized that you washed them but you can't seem to remember doing it all. It's like being drunk or stoned but at another level. You try to get up and move and concentrate but your mind just loses it. You body tries to go to sleep when it's completely dark. If you move from one room to another and happen to be in a pitch black room, you will stand there until someone wakes you up, but the weird part is that you are awake you just can't move. Like you're lost.