Well, I've seen that I should wake up and go to bed again then (WILD included) to improve my recall technique. Supossing I sleep from 12am to 8 am... I should put my alarm at 7 am, shouldn't I?

Here comes the "But". But (here is ) If I couldn't go to sleep after waking up a 7 am, could I set my alarm for some time before? I mean, 3 am or similar. I should set my alarms according to the REM states (Am I wrong?) Where can I find a time chart where REM states are reflected?