bedtime

noun

1. the time at which a person usually goes to bed: It’s past my bedtime.
2. the time at which a person goes to bed on a particular night: I have to get up early tomorrow so bedtime tonight will be 9 o’clock.

noun

1. 1. the time when one usually goes to bed
   2. (as modifier)a bedtime story

n.

also bed-time, early 13c., from bed (n.) + time (n.). Bed-time story attested from 1867.