よく眠れました

slept well

→ 良く
phrase Uncommon #9,417
slept well A polite expression meaning “slept well”; with rising intonation, it asks whether someone slept well.
JA: 昨夜はよく眠れました。
EN: I slept well.

お母さんよく眠れました

Mom, did you sleep well?

— 甘い生活 (1960)

昨夜はよく眠れました

Did you sleep well last night?

昨日はよく眠れました

Did you sleep well last night?

よく眠れました

I slept well.