あさ寝坊 ねぼう
asanebō

Noun
Suru Verb

1. sleeping late in the morning; sleeping in; lie-in; oversleeping

Intransitive
あさ寝坊 ねぼう くせになった。
asanebōga kuseni natta.
I took to sleeping late in the morning.
Noun

2. late riser; person who is bad at getting up in the morning