寝覚め is read as ねざめ (nezame) and means awaken.
ねざめ
nezame
ねざめづき
ninth lunar month
ねざめがわるい
to have an uneasy conscience
ねざめのわるい
of uneasy conscience
ねざめる
to wake up
ねだい
bed
ねまき
nightclothes
しん
sleep
しんしつ
bedroom
ねる
to ferment (of soy sauce, miso, etc.)
ねがえり
betrayal
ねころぶ
to lie down
ねがお
sleeping face