What does ぐっすり mean?
ぐっすり is a Japanese adverb meaning “sound asleep, fast asleep” in English. It is written as ぐっすり in hiragana, and gussuri in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
昨夜はぐっすり眠れなかった。
I couldn't sleep well last night.