Some people in the family can wake up on time without an alarm, but I am not one of them. Pre-surgery I would set an iPod on running days and my watch on swim days (since I was going to take it off to swim anyway).
Now that I sleep with my good ear on the pillow I can't hear any alarm. My first post-surgery alarm was to set the iPod and have D. poke me, but I realized that method won't work if he is at a conference or elsewhere. I looked into vibrating watches (which are more expensive on websites with deaf people as target audiences compared to websites geared toward people trying not to wake up spouses). A lot of people said they were good for reminders but no as effective for waking people.
I was curious about vibrating alarm clocks and mentioned this to a friend who offered to give me hers, one they had when they were searching for ways to wake a teenager.
I couldn't understand how it worked, but that is because the photo doesn't show the cord that runs between the clock and the paddle. I also didn't understand how it could work if it were under the pillow. It has been a pleasant surprise to learn that it is very effective, even if it puts D. out of a job.