10 Best Loud Alarm Clocks for Heavy Sleepers, According to Reviewers

If noise alone doesn't work, this loud alarm clock vibrates, shakes your bed, and functions at an extra loud level. One Amazon reviewer, a.k.a a parent of a hard-to-wake-up teen, says this alarm clock turned their "miserable mornings" into "something out of a dream." One reviewer commented that the alarm even woke up his neighbor — just something to note if you're living in an apartment. 

RELATED: 6 Best Kids' Alarm Clocks to Wake Them up for School on Time

While the alarm is loud, you can adjust the volume to be low or high. Elderly and near-sighted users find the bright, 4-inch screen to be very helpful when reading time from a distance. A large snooze button sits at the top of the sleek clock for easy access, which can be a pro or con depending on how reliant you are on it. 

Whether you travel often or just prefer a more compact alarm clock, this fold-up alarm is for you. It features a simple design with just five buttons. Reviewers seem to agree that the alarm is plenty loud for travel purposes, in particular. One reviewer says, "The intermittent beeps get louder and faster until you turn off or press light button to activate snooze button, which I love." 

This cute silver alarm clock works like an old-fashioned one, which isn't a bad thing. The twin bell design and a mini-hammer make for extra loud ringing so you'll jump right out of bed. One reviewer credits this clock for no longer being late to work. As for the ticking, the brand and reviewers claim that the ticking remains silent throughout the night. 

Even if you're sleeping on the comfiest and coziest mattress, this alarm clock was made to wake you up on time. It features an extra loud buzzer and bed shaker attachment that vibrates on a gentle, medium, or strong level. The clock features a dual alarm setting in case your partner wakes up at a separate time. Bonus: Side USB ports let you charge your iPad, iPhone, or Android device. 

This fun little robot clock is actually the result of a successful Shark Tank pitch. Clocky is guaranteed to get you out of bed because in addition to beeping, he'll shake, move around, and run away from you until you turn him off, forcing you to get up. Reviewers do note that this clock is more of a novelty item, so it might not last you as long as other options on this list. 

If style and design is a priority for you, this clock does the trick. It comes in black, white, and four pastel colors, so it'll fit in with whatever aesthetic you're working with. Users love that this little clock features silent ticking, making it easier for you to fall asleep at night. The retro clock also offers a backlight which can be activated by a small button behind the clock. 

You can set up two separate alarms with this digital clock so you can have one going for the weekdays and one for the weekends. And when the alarm goes off, the buzzer gets increasingly louder within one minute. Additional features include an indoor thermometer, a digital hygrometer, and dimmable backlight. 

Blue backlight keeps this alarm clock gentle on the eyes while still providing a comfortable amount of light. It's barely bigger than the palm of your hand, making it the perfect size for a nightstand, desk, or travel. Just keep in mind that the screen sits on a slight angle, to which reviewers find difficult viewing the time upon waking up. 

Reviewers call this clock the "best of both worlds" because it combines the technology of a loud alarm with classic twin bells. It also offers dual alarms, long battery life, and easy portability. Reviewers like that the clock is pretty easy to set up, though some comment they wish the clock ran on AA batteries as opposed to AAA.