Vibrating alarm clocks and bed shakers
Key takeaways
- A bed shaker or pillow shaker is a vibrating pad wired or linked to an alarm clock. You feel the alarm instead of hearing it.
- Bed shakers go under the mattress, pillow shakers under the pillow. Look for adjustable strength and a way to keep the pad in place.
- Wristbands and smartwatches give a quieter vibration that does not wake a partner.
- For people with hearing loss, RNID notes that low-frequency sound around 520 Hz wakes people better than high beeps, and that flashing lights can help.
What is a vibrating alarm clock?
It is an alarm that wakes you by shaking rather than, or as well as, by sound. Most have a separate vibrating pad on a cable or a wireless link. When the alarm goes off, the pad vibrates against your mattress or pillow. Many also have a loud alarm and flashing lights, so you can combine signals. They are made for people who are deaf or hard of hearing, and they are also used by heavy sleepers and by people who must wake without disturbing others.
Which type should I choose?
| Type | Where it goes | Good for |
|---|---|---|
| Bed shaker | Under the mattress | A strong shake you feel through the bed |
| Pillow shaker | Under or inside the pillowcase | A focused vibration near your head |
| Wristband or smartwatch | On your wrist | A quiet alarm that does not wake a partner |
| Strobe or flashing light | At the end of the bed or on the clock | Seeing the alarm even with your eyes closed |
| Sunrise light | Bedside | A gradual light before the alarm |
| Extra-loud, low-pitched alarm | Bedside | People with some hearing; heavy sleepers |
Many people combine two of these, for example a pillow shaker and a flashing light.
What features matter?
According to RNID, the UK charity for people with hearing loss, useful features include adjustable vibration strength from gentle to strong, wireless or Bluetooth links to a phone app, and a clip or safety pin to keep a pillow shaker in place overnight. Also check that the clock has a battery backup, so a power cut does not silence it, and a snooze you cannot reach too easily if you tend to switch alarms off half asleep.
Can my phone vibrate me awake?
Sometimes. A phone's alarm can vibrate, and RNID points out that smartphone accessibility settings can combine loud alerts, vibration and a flashing camera light. A phone on a mattress is much weaker than a bed shaker, though, and it can slide off. Browser alarms are more limited: HeavySleeper can vibrate in Android browsers that support web vibration, but Safari on iPhone does not support it, and the page must stay open and the screen unlocked. Test it on your device while you are awake.
Is a vibrating alarm good for heavy sleepers who can hear?
It can be, because it adds a second kind of signal. If you sleep through sound, a vibration you feel may get through. Combine it with a sound and light, and put something you must do out of bed at the end of the alarm; see alarms that make you get out of bed. If you regularly sleep through strong alarms after enough sleep, talk to a doctor.
Frequently asked questions
Where do I put a bed shaker? Under the mattress, near where your body lies, or as the instructions say. A pillow shaker goes under the pillow. Keep cables away from where you could get tangled.
Do I need a special clock for a bed shaker? Usually the shaker comes with its own alarm clock. Some connect wirelessly or by Bluetooth to a phone app instead, as RNID describes.
Will a bed shaker wake my partner? It may, because the whole bed moves. A pillow shaker or a wristband is more private.
Sources
- RNID. Alarm clocks for people who are deaf or have hearing loss.
- MDN Web Docs. Vibration API.
Last reviewed 12 November 2026.