깬지 = wake up

Thank you! :)

reply does not take anything within brackets... anyway what I meant between quotes is " perhaps waking up from sleep" literally saving us the trouble of putting in an adverb like we do in english. That's the power of korean language. Some grammar structure expresses feeling that some european languages lack of.

잠 has to be read together with 깨다 to make sense. ㄴ지 in korean is a structure that indicates possibility & doubt so with 깨다 it will stand to mean "<perhaps> waking up from sleep" ㄴ/는/은/ㄹ/을/를 지/가 are very common in usage. try to get used to their presence.