Following my other post...4 days later after a clean install of Mojave I have experienced my first reboot. It occurred just after the lid was opened after a night of sleep. Interestingly enough, there was no crash report message. However, looking into the logs, I see this
com.apple.xpc.launchd[1] (com.apple.sandboxd[9133]): Service exited due to SIGALRM | sent by kernel_task[0]
Also, looking at the timestamps of these messages, there is a lot of activity when the laptop is supposedly sleeping
Oct
3 01:58:39 XXXXXXXX-MacBook-Pro syslogd[39]: ASL Sender Statistics
Oct
3 01:58:40 XXXXXXXX-MacBook-Pro timed[77]: settimeofday({0x5bb45a90,0x696f4}) == 0
Oct
3 01:58:40 XXXXXXXX-MacBook-Pro kcm[9082]: DEPRECATED USE in libdispatch client: Setting timer interval to 0 requests a 1ns timer, did you mean FOREVER (a one-shot timer)?; set a breakpoint on _dispatch_bug_deprecated to debug
Oct
3 03:58:59 XXXXXXXX-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.sandboxd[96]): Service exited due to SIGALRM | sent by kernel_task[0]
Oct
3 03:58:59 XXXXXXXX-MacBook-Pro syslogd[39]: ASL Sender Statistics
Oct
3 03:59:00 XXXXXXXX-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.bsd.dirhelper[9096]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.bsd.dirhelper
Oct
3 03:59:00 XXXXXXXX-MacBook-Pro kcm[9099]: DEPRECATED USE in libdispatch client: Setting timer interval to 0 requests a 1ns timer, did you mean FOREVER (a one-shot timer)?; set a breakpoint on _dispatch_bug_deprecated to debug
Oct
3 03:59:00 XXXXXXXX-MacBook-Pro timed[77]: settimeofday({0x5bb476c4,0xdf811}) == 0
Oct
3 05:59:17 XXXXXXXX-MacBook-Pro syslogd[39]: ASL Sender Statistics
Oct
3 05:59:18 XXXXXXXX-MacBook-Pro timed[77]: settimeofday({0x5bb492f6,0x84f9d}) == 0
Oct
3 06:32:01 XXXXXXXX-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.sandboxd[9133]): Service exited due to SIGALRM | sent by kernel_task[0]
Oct
3 06:32:01 XXXXXXXX-MacBook-Pro syslogd[39]: ASL Sender Statistics
Now I don't think this has anything to do with it but its interesting.