sorry, another wild question

sorry, i have just a general wild question. last night, i think i may or may not have seen some wierd hypnagogic imagery (something like some big multicolored elevator, and i was ascending in it), like i saw it, but it wasnt super real, like i was seeing it with my eyes in real life. but that's besides the point. the other thing that happened that night was, as i was laying there, i eventually felt really relaxed and heavy. and then i had this odd sensation like a switch or transition in the way i felt my body - like i felt kind of detached from my body. however, i wasnt sure if i had entered sleep paralysis, or if i just couldnt really feel my limbs cause i hadnt really moved that much and maybe my circulation wasnt really functioning that well. and at that point, i dont think i had heard anything or felt any vibrations. well anyway, just to be sure, i tried to move, and i did. and eventually i "fell asleep". so i was wondering - do you guys think i fell asleep and was never really in sleep paralysis, or i was just in a dream of me in bed, and lost lucidity? and of course, the only person who could really be the judge of the situation is me, but i'm just wondering if you guys have any insight on the matter. thanks

oh and p.s. - if i were to succesfully wild in the beginning of the night, how long would the dream (rem period) last?

For what my imput is worth, I dont think you were in SP but may have been on the verge but disturbed it before it took full effect. If you became vividly conscious of the fact that you were dreaming for however short a period, then you were lucid and no matter what method was used to achieve lucidity, the length of the LD varies from a split second to however.
Only practice and learning the skills to control and maintain an LD will prolong its length.