Japanese

Noun

高鼾 ‎(hiragana たかいびき, romaji takaibiki)

1. a loud snore
2. a deep sleep (so deep that the sleeper does not wake from their own loud snoring)

References

1. ↑ 1988, 国語大辞典（新装版） (Kokugo Dai Jiten, Revised Edition) (in Japanese), Tōkyō: Shogakukan
2. 1 2 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, ISBN 4-385-13905-9