Kaffeine: prevent heroku app from sleeping

Most apps on the cloud are sleeping as the platform provider idles an app if there’s not a request for a certain amount of time. Heroku’s threshold is 1 hour. I found several discussions on the web: http://stackoverflow.com/questions/5480337/easy-way-to-prevent-heroku-idling http://longren.io/heroku-depriving-your-free-dyno-of-sleep/ https://github.com/alaingilbert/Turntable-API/issues/243 I first tried adding new relic to my heroku app, but it seems an overkill