Charo feels like he is in a nightmere。
feel like = (気がする.)かのようだった。
Charo is just about to fall asleep
just about = だいたい、ほぼ、
Charo is just about/to fall asleep = チャロは一瞬眠りかける
Mao Asada was just about to get a gold medal at the last Olympic in Canada.
(Feel like) (just about)