So Nolla, you do that too? I'm not sure if it happens or not, but I have a feeling it does. It's the only way to explain some things (like last night's alarm).
Do I do what? (I have hard time concentrating today, sorry.) Close alarm without waking up? Yeah, I've done it for years. But it never happens if I promised someone I would be somewhere, I just have to KNOW it is important. If I don't consider that it is very essential for me to wake up, then I will not. Or if I do, I will think, "five more minutes"...
In theory the radio alarm should rose me out of deep sleep. In concept the buzzer alarm which sounds half an hour later should get me further awake. The huge old fashioned alarm clock with two 2" bells on it across the room should ensure that I get up and am awake (that one is LOUD!). The alarm on my wrist watch should make certain that at 5 past I'm fully aware of the passage of time and my mobile playing loud music at a quarter past should clearly indicate when I'm pushing my luck. Somehow it never matters though if I can't be bothered with life in general that day...
According to theory an alarm that not only makes noise but also turns the lights on would be the best. Possibly doing both gradually. Waking up suddenly hurts (see previous remark about bell alarm clock).
I think I'm a pretty light sleeper, really. I woke up eventually because my roommate walked in the door, and closing the door woke me up for good.
I've never even used the Snooze Button before, because I don't plan on pushing it off for a few more minutes. I know why I set the alarm, and it's to get up, now. So long-term, I want to get up, but impulse makes me sleepy again. (hypocrisy)
I got one of those daylight simulator clocks that I set half an hour before I have to get up. It starts by slowely turning a dimmerswitch high and higher, and once it's at max, it also sets off some kind of sound (frogs, birds or waves). It works very nicely if you're well rested, as you get out of bed with a great feeling, but if you're too tired still, it only lightens your sleep and you need an extra beeping mechanism. I also once managed to sleep right through all of it, as I was so dead tired
Actually, the best approach to an effective alarm clock is GETTING ENOUGH SLEEP. Go to bed at the same time everyday, and make sure it's a time that results in getting all of the sleep that you need to feel rested.