IPA: //ˈbɛdˌtaɪm//
KK: /ˈbɛdˌtaɪm/
The time when someone usually goes to sleep or gets ready for bed.
Children often have a specific bedtime to help them get enough rest.
Bedtime → It is formed from "bed" (from Old English *bedd*, meaning a place for sleeping) and "time" (from Old English *tima*, meaning a period or duration). The word "bedtime" refers to the time designated for going to bed or sleeping.
Think of a 'place for sleeping' ('bed') and a 'period' ('time') — that's why bedtime is the time for going to sleep.