Drunk, exhausted, or just plain oblivious subway riders touting Android devices now have a bit of a safety net.

Google Now's public transit alarm at work in the Netherlands.

Above: Google Now’s public transit alarm at work in the Netherlands.

Image Credit: Android Police

Google has integrated smart alarms into its Google Now public transportation card, reports Android Police.

That means the contextual software, which surfaces information on “cards” that pop up when they’re relevant, now offers bus and train travelers the option to set an alarm tied to their expected trip time.

Theoretically, the software will alert you just before it’s time to disembark.

If Google Maps offers public transit directions in your area, you should have access to Google Now transit alerts — so lean back, hide your wallet, and enjoy those extra 40 winks.