This isn't as much of a free lunch as it used to be back in the day. Heroku modified its method for gifting "free hours" and so there is a possibility that your

This isn't as much of a free lunch as it used to be back in the day. Heroku modified its method for gifting "free hours" and so there is a possibility that your dynos wont actually run when you need them to if you are preventing them from sleeping. https://devcenter.heroku.com/articles/free-dyno-hours https://devcenter.heroku.com/articles/free-dyno-hours