I just woke up from a nap, and I had a lucid during that nap.
I became lucid because an aligator was chasing me around my house (for 5 seconds) and then I realized they can't move fast, at least as fast as me. Didn't do a reality check or anything. Then, for the first time in my lucids, I was web-swinging like spiderman across trees and parks. when i landed, I was at a park, and started to dig in the sand (trying to find...well, anything) and I made a new theory about waking up from lucids (preventing it).
I laid in the sand , and I woke exactly in that position, so I think to make your LD's longer, don't lay down in a position you usually sleep in (just thought I'd share that )