awake vs wakeful

awake and wakeful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
awake	No	Yes	Yes	No
wakeful	No	Yes	No	No

awake (adjective)	wakeful (adjective)
not in a state of sleep; completely conscious	carefully observant or attentive; on the lookout for possible danger
mentally perceptive and responsive	marked by full consciousness or alertness
	(of sleep) easily disturbed

awake (verb)	wakeful (verb)
stop sleeping