Hey, so yeah i seen the 'stages' of sleep, where you usually start your REM period, aka dream time, in 90 minutes of sleep or something? My question is, you know those times when you are maybe in a car or umm anywhere. where you fall asleep for maybe like 15 or 30 minutes, is it possible you get in a dream within such a short period of time? or even get into a lucid dream?

Thanks.