Fell asleep, woke up.
I fell asleep this afternoon. That's not at all unusual for me. Definitely to be expected, in fact. Especially when I decided I'm "just going to rest for a bit".
An hour ... I don't know ... two hours? Later I woke up. That too is (unfortunately) normal: no ten minute "cat naps" for me.
This time when I awoke I didn't feel the usual "just ran another marathon" exhaustion I experience when I wake up (even after a night's sleep).
This time I felt I had slept because my heart was tired of keeping me awake.
That makes no sense, I know. But it was a feeling, not a diagnosis. The sensation was that if the sleep had lasted a few minutes more it would have lasted forever.
Part of me is sad that didn't happen.