After testing more than 40 alarm clocks, researchers recommend the Sonic Bomb by Sonic Alert. The clock is particularly loud and comes with a vibrating feature. The Sonic Bomb, which has a 113dB extra loud alarm is surely designed to get you off your bed in an abnormal panic. It could even feature in your dreams as disturbing time bomb in case you have been watching too many action flicks as you nod off.
The sonic Bomb could be yours for a decent $37, but just beware that this device will surely cause a few disturbing nightmares, especially in the initial days of use.