I woke up and I couldn't 'fall' back 'asleep'. [=I couldn't go to sleep again]
We were still 'half asleep' when we went to school the next morning.
One moment she was 'sound asleep', the next she was wide awake!
(..) Did you have a good time tonight at Miss Melly's party, child? Yes, yes. Now, Mammy, be sure and leave word... ...if Captain Butler asks for me when he comes back, I'm asleep. Yes, ma'am. Come in, Mrs. Butler. Come here. Sit down! There's no reason why you shouldn't have (..)1939 Gone with the Wind