Possible to bypass Heroku's free plan's "Sleeps after 30 mins of inactivity" with console.logs?

Heroku has a free plan, as outlined here: https://www.heroku.com/pricing

One of the drawbacks of the free plan is that the server goes to sleep after 30 minutes of inactivity. Is it possible to bypass this if I have a console.log("stay awake"); occur every 20 minutes?

Thanks.

via Ralph David Abernathy