The Onyx Vibration Alarm is a wrist-worn watch that wakes you using silent vibrations — perfect if you share a room or are a heavy sleeper who ignores traditional alarms.
Yes. Our vibration motor is calibrated specifically for heavy sleepers — it's strong enough to rouse you from deep sleep without disturbing anyone else.
Set your alarm time via the watch buttons. At alarm time the watch vibrates against your wrist with graduated intensity until you dismiss it with a button press.
We ship from the US. Standard delivery is 2-4 business days. If you're not 100% satisfied within 30 days, contact us for a full refund — no questions asked.








Physical vibration beats sound. Every time.




Thousands of heavy sleepers finally waking up on time — without disturbing their partner.
"I've tried every alarm app and clock out there. Nothing worked. The Onyx literally vibrated me out of the deepest sleep I've ever had. Game changer."
"My partner used to have to shake me awake every morning. Now the Onyx does it silently and I'm up before my phone even goes off."
"I share a dorm room and I was terrified of waking my roommate with alarms. The Onyx solved that completely. Shipping was also insanely fast."
Including sleep experts, healthcare professionals, and elite performers
I've been a heavy sleeper my entire life and nothing has ever worked until the Onyx. It vibrates strong enough to wake me but silent enough that my partner keeps sleeping. Total game changer.
As a personal trainer I need to be up at 4:30am without disturbing my wife. The Onyx does it perfectly every single day. Battery lasts forever too.
Used to sleep through four alarms. My roommate had to physically shake me awake or I'd miss class. First morning with the Onyx I was up before it even finished its first pulse. Genuinely shocked.
Bought this for my husband who is the world's heaviest sleeper. After the first morning he was completely converted. We both sleep better now that I'm not woken up by his five backup alarms.
The escalating vibration is genius. It starts gentle and builds so you don't get that horrible jolted-awake cortisol spike. I wake up feeling calm and actually ready for the day.
Night shift nurse. I sleep during the day while my family is home. This is the only alarm that wakes me without waking my kids. The fact that I can finally sleep guilt-free is priceless.
Tried 3 other vibrating watches before this one and none of them compared. Build quality is excellent and the charge lasts over two weeks. Minus one star only because I wish it came in more colors.
My partner and I have completely different schedules. The Onyx means we both get full uninterrupted sleep without either of us compromising. Genuinely improved our relationship.
I was so tired of setting 10 alarms every night just hoping one would actually work. Now I set one alarm on the Onyx and I'm always up. The sleep anxiety I used to have is completely gone.
College student in a shared dorm room. This is essential. No more accidentally waking my roommate at 6am for early classes. He actually thanked me for buying it.