Create two separate schedules for installing patches and rebooting the machines.
Example:
Deploy from 13:00 PM - 15:00 PM
Reboot at 23:00 PM

It give us the flexibility to pick when we want the patches to be installed and when to have the devices reboot.
In our environment I know that at 12pm the majority of our devices pcs/laptops will be connected and people start going to lunch so I would have the patches start installing at around 12pm but then have the reboot prompt start at 10pm