it's said REM begins roughly 90 minutes after you fall asleep, and i understand the stages of sleep and all that. but then what is a WILD? how is that possible if clear and lucid dreams are only possible durring REM? along that line, when we fall asleep at night, often times we get vivid images that almost suck us in, just before we doze off. you've probably noticed the images become more clear as you drop off into sleep, and sometimes it feels you're suddenly there in another world. it's more than just hypnogogic imagery wouldn't you say? and that's the entrance to a WILD from what i've learned. so just curious why that's possible if REM sleep is the only time such lucidity is possible. of course napping durring the day probably begins with REM quickly, but not at night, according to the stages.