hypnopedia vs sleep-learning

hypnopedia and sleep-learning both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypnopedia	Yes	No	No	No
sleep-learning	Yes	No	No	No

As nouns, hypnopedia and sleep-learning are synonyms defined as:

hypnopedia and sleep-learning: teaching during sleep (as by using recordings to teach a foreign language to someone who is asleep)

hypnopedia (noun)	sleep-learning (noun)
teaching during sleep (as by using recordings to teach a foreign language to someone who is asleep)	teaching during sleep (as by using recordings to teach a foreign language to someone who is asleep)