Comment by skirmish

> A deep 15 minute nap takes the feeling away

Almost the same here but it's not a deep nap for me. I relax, start seeing dream-like images in my mind (yet still drifting into-out of conscious awareness), then in ~15 minutes I feel energy build up and am ready to jump up and go.

I would say that the darn alarm clock prevented me from completing a sleep cycle properly in the morning, and now I did complete it and made my brain happy.