are you ready to learn korean while sleeping 8 hours? Binaural beats are specifically meant for sleep learning. learn korean while you sleep most important korean phrases and words englishkorean (8 hours) watch later. In summary, sleeping is essential for filing away what we have learned during the day into our memory banks where they are stored and can be recalled at a later date. For a more complex study, such as korean or a foreign language, sleep helps us to consolidate what we have already learned, instead of actively processing new information.