Finally found a clock that can wake up the dead.

You can set this alarm clock to be quite loud and to vibrate at the same time, and it has flashing lights. Might be overkill for some people, but I am hard-of-hearing and don't wear hearing aids at night when I am sleeping, so I need all the help I can get to wake up. I set it on the loudest setting. You can clip it to your pillow so that you feel the vibration (it comes with a short 34;leash34; attached that has a clip on the end). Or you can set it on a hard surface near your head, like on your bedside table. The sound seems even louder there than when damped by your pillow, because the vibrations make it sort of clatter on the hard surface. They may even cause the clock to move about a little, and possibly fall off the table--which might help you even more to wake up. But its efficiency in waking you up does depend on how soundly you sleep, as well as how keen your hearing is and how close to your ears the clock is, and I confess that I have on occasion slept right through it. Check the measurements if you need something small, because this clock is bigger than most travel alarms and heavier. But worth it, if it does the job for you.

I didn't get it for over a month after ordering but so far it works as good / better than my previous shake awake alarm clock.