after purchase a ugly Sonic bomb alarm for myself and have great result -lrb- finally ! -rrb- get up for work on time , my 16-year-old daughter-also a very heavy sleeper-requested one . further search turn up the same alarm in way better clothing . now we both be jolt from sound sleep , out of bed , and be leave the house on time . if you want to get to class on time or keep you job , I highly recommend both of these alarm . they do not have multiple you-tube video for nothing !