I set my alarm last night for 6:22am this morning.  I don’t remember noticing it go off.  My alarm stays on until you push the button.  The sun woke me up at 7:35am this morning, and I was at work at 7:50am.
I had a long day, no lunch, and am going to bed now.  I feel good about my accomplishments today, so there’s no hard feelings toward the alarm, but I’m bringing in backups tonight for tomorrow morning.  I’ll let you know how it turns out.