You can't always be on, even if you're a Jedi. After all, Jedi's are people, too.
Master Dave just needs some time to get himself going in the morning. He may be a guardian of peace and justice in the galaxy, but that doesn't mean he looks forward to his alarm going off any more than you or I.
And let's be honest, if you were one with the force you'd use it to make your breakfast routine a little easier, too. No judgements.