Sharp Big Bang Super Loud Alarm Clock for Heavy Sleepers, 6 Extremely Loud Wake Up Sounds: Rooster, Bugle, Nagging Mom, Jackhammer, Siren, Beep – Up to 115db Volume, Red/Black with Red LED Display

Very loud. Easy to set or adjust tome and/or alarm times. Several different alarm sounds available with large range of volume including a VERY loud setting. I love this thing. I set mine to the "rooster crowing" alarm sound and set it to the lowest pitch version - at max volume. I think it would be near impossible to sleep through. And I have definitely slept through alarms before. Not this one so far though. I'm deaf in one ear and even if I turn over so my "good ear" is down against the pillow, this is loud enough that I'm confident there is no way I'm not going to wake up.ONE downside - The size of the display is a little small. Big enough when adjusting it - but not really big enough for easy visibility without squinting when looking at it from across the room while in bed.

My grandfather is extremely hard of hearing, and this alarm clock is PERFECT!!! we have tried many diffrent clocks and finally we found this one! We turned the volume about half way up and it's plenty loud to wake him up!!! He loves the rooster sound waking him up!!!

This Sharp Big Band Super Loud Alarm Clock - is the real deal. It isn't a normal loud, it is EXTREMELY LOUD! Which is exactly what I wanted and needed! It has different wake up sounds and has I think 1-15 different loud settings, 15 being the loudest. If your anything like myself (I would call myself a very, very, HARD sleeper, anything above "10" will work for me) but I still have it all the way up just so I know ill wake up regardless! It's a blessing and a curse to be able to sleep like I do, but the curse is that normal alarm clocks just don't do it! I even looked into those alarm clocks with a shaker for your pillow.. I can tell you with how loud this is, you don't need anything else but this alarm clock! To give you a little example of how deep of a sleeper I am, when my fiancé and myself were in the hospital after our third child, the fire alarm for the brand new hospital we were in, went off and everyone on our floor ran out of their room thinking if was for real, and this was around 3AM in the winter, there was snow on the ground outside - I was still sleeping on the bed completely unfazed from this gigantic alarm going off through the hospital. Yes I was a bit sleep deprived as well but still, even if I wasn't, I would not have woken up.. So after saying that type of story, and for me to say this works for me should tell you how loud this alarm clock is!!I will say if your sharing a house with roommates, small kids, or a family - you may want to let them hear it so they at least don't awaken frightfully when it goes off lol regardless where this alarm is located in your house, it WILL wake up people throughout the house if you have to have it on the loudest setting. My fiancé can literally wake up to her phone vibrating in the morning. She is a very light sleeper so if she was around in the morning to hear this alarm clock go off it would probably blow her eardrums out (lol being a little dramatic but it is extremely loud when your right next to it) but really this is so loud it will wake some up everyone in the house.In all seriousness this alarm clock does its job for HEAVY SLEEPERS and is a fantastic!! I have loved it since the first morning Ive used it. It has not let me down yet and I HIGHLY recommend this alarm clock to the people that sleep similarly to myself. 5 out of 5 stars for this product! Love it!!

Great alarm for me since I’m a heavy sleeper. The only thing I have noticed is that some times it does not go off or it goes off for a few seconds and then stops

This is the perfect clock for those like me who are hard of hearing. East tp work with and definitely easy to hear. Nice to have several selections of different sounds.

Absolutely without a doubt the most LOUDEST alarm clock I've ever heard!!! Variety of sounds also make it a super cool alarm! I was actually afraid it would wake my downstairs neighbor 😆.A great purchase especially for deep sleepers like me!!If this alarm doesn't wake you up you may be dead then again it may wake the dead!!!!

This is the best clock you can buy if your a heavy sleeper: if this clock don’t wake you up nothing will. Love it, had it for 1 year and it’s still working.

Loud as promised, but with a wide volume range. All 6 alarm sounds are effective and even funny: nagging Mom," Get out of bed!"