寝坊する · noun or participle which takes 'suru'
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 寝坊する | 寝坊しない |
| Polite | 寝坊します | 寝坊しません |
| Past polite | 寝坊しました | 寝坊しませんでした |
| Past | 寝坊した | 寝坊しなかった |
| Te-form | 寝坊して | 寝坊しないで |
| Desire | 寝坊したい | 寝坊したくない |
| Potential | 寝坊できる | 寝坊できない |
| Passive | 寝坊される | 寝坊されない |
| Causative | 寝坊させる | 寝坊させない |
| Causative passive | 寝坊させられる | 寝坊させられない |
| Volitional | 寝坊しよう | |
| Polite volitional | 寝坊しましょう | |
| Imperative | 寝坊しろ | 寝坊するな |
| Conditional | 寝坊すれば | 寝坊しなければ |
| Tara conditional | 寝坊したら | 寝坊しなかったら |
noun, noun or participle which takes 'suru', intransitive verb, na-adjective, noun which may take the genitive case particle 'no'
oversleeping; sleeping in late
Refers to the act of sleeping past the intended time, often resulting in being late. Commonly used as a noun or with する to mean 'to oversleep'.
I overslept this morning and was late for school.
I set an alarm so I wouldn't oversleep.
late riser; sleepyhead
Refers to a person who habitually sleeps in or is a late riser. Often used in a light, teasing manner.
He's a real sleepyhead and always sleeps until noon on his days off.
I overslept this morning.
He's always a late riser.
I overslept and was late for the meeting.
My son is a kid who's a late riser.
寝坊 means oversleeping or waking up late, which is the opposite situation from 寝不足's lack of sleep, though both share the kanji 寝 and are easy to mix up.