# caffeinate > Prevent macOS from sleeping. > More information: . - Prevent the display from sleeping: `caffeinate -d` - Prevent from sleeping for 1 hour (3600 seconds): `caffeinate -u -t {{3600}}` - Fork a process, exec "make" in it, and prevent sleep as long as that process is running: `caffeinate -i make` - Prevent from sleeping until a process with the specified PID completes: `caffeinate -w {{pid}}` - Prevent disk from sleeping (use `` to exit): `caffeinate -m`