Dr. Teeth and I chose alarms on our phones that are as different as we could find from each other. His is actually awful and piercing because he'll sleep through anything else. After about 3 months, I was able to sleep through it without even hearing it. I hear it about once a week now and just roll over and go back to sleep.
Snoozing, however, is absolutely forbidden except in extreme circumstances in our house. I used to hit snooze every day, but finally figured out that it was incredibly rude.