sleep is important to growing organism

have you ever wondered how you fell asleep last night? such thought comes across my mind now and then... I used to fall asleep the minute I get in bed.. it has changed over the last year and now I am still [as I have started to wonder before] wondering about the possibility that I might be in need for sleeping pills.. but the story is not about that... before sleep you try to find the best pose to rest in during the night.. for me it takes more than 20mins to find the right pose but I can never remember in which pose I fell asleep... I am then in the next night always trying to remember the pose in which I fell asleep but it never works... suppose the brains are like a computer by which I mean if you faint in a second you remember how it happened but if you go trough the all system shuting down process [you know... logging off, saving your settings ect.] you can not remember things that took an action during that process... sometimes I even get in the stand by mode and I can feel how my mind is switching to it....
suppsoe human mind is just a big mashine itself

p.s. I am starting to wake up strange too.. not the usual "open you eyes, understand where you are" way but like I would get my head above the water after drowning or something... it's starting to bother me a little