Lead Ninjas software needs to sleep for a minimum duration of 8 hours for every 24 hours. Consider it as regular sleep hours of a human being.
During the sleep mode, the Lead Ninjas bot stops syncing with LinkedIn. That means all the campaign activities, messages, stats, and dashboard updates will pause during sleep mode. All operations will automatically resume after sleep mode.
The default sleep mode is from 10.00 PM to 6.00 AM Eastern Time. However, you can customize the sleep mode hours to your schedule.
See the below image for your reference.