Go to http://www.Diglo.com and you'll find a variety of alarm clocks for people with hearing loss. I've used one of the Sonic Boom clocks and it's worked just fine. Others I know prefer the flashing light. It depends on how sound you sleep.

There is also a 'baby cry' device. Diglo has a lot of assistive technology. If you decide what you are looking for you might want to see if it's available on Amazon.

Assistive technology keeps us going. Do you use any other tech devices?