HI BerryKid... if you set your alarm, and then set your profiles to Quiet, your alarm will go off, but you won't get any other notifications (i.e. email, SMS, phone calls, etc.). If you don't believe me - set your alarm for 5 mins from now, then set your phone to quiet and see if the alarm goes off. :-) Good luck!
I put my profile on "quiet" and the alarm is all that sounds....I'll be honest, I don't know if I have inadvertantly set this up somewhere, but it does exactly what you want. If I use "off" then nothing sounds.