Fits almost any door.
Built for 5-15mm door gaps, NightKeeper wedges snug under hotel, hostel, and Airbnb doors without tools or adjustments.
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NightKeeper Door Alarm
$29.95
$0.00
NightKeeper™ Door Alarm
A compact door stop alarm for hotel rooms, hostels and Airbnbs. Slide it under any door that opens inward and switch it on. If someone tries to open the door, the vibration sensor sets off a loud 130dB alarm.
$29.95
$0.00
- 130dB alarm
- Vibration-activated sensor
- No tools or install
- Fits in your carry-on
From solo travelers
The women who sleep easiest agree.
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I used to check the lock three times before bed. Now I wedge NightKeeper under the door and sleep so much better in every new city.
Marisa
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My Airbnb bedroom door barely locks. NightKeeper's alarm gives me real peace of mind, and I forget it's even there until I need it.
Sophie
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I armed it, read until midnight, and fell straight asleep. First real night's rest in a sketchy hostel in months.
Priya
Set it before bed
The door's covered. Get some sleep.
Slide NightKeeper under the door and flip the switch. If anyone tries to push it open, the vibration sensor sets off a 130dB alarm loud enough to wake you and the whole hallway.
- One switch to arm it
- No tools, no app, no install
Built for real doors
Quiet enough to carry. Loud enough to stop them.
130dB siren inside, rugged ribbed grip outside, fitting door gaps 5-15mm so it sets up in seconds, anywhere you sleep.
- 130dB siren inside
- Rugged ribbed grip outside
- Fits 5-15mm door gaps
Easy to install
Secure, yes. Complicated, no.
No drilling, no app, no code. Wedge it, flip the switch, and the red light confirms you're covered before lights out.
Arms itself, confirms itself.
One switch arms the 130dB alarm, and the red indicator light lets you know it's set before you ever turn off the lights.
Good to know
Questions, answered.
Plain answers on setup, battery life, door fit, volume, shipping, and the 30 day money back guarantee.
How do I set it up?
Slide it under the inside of your door, switch it on, and you're set. No tools, no app. It works straight out of the box.
Will it fit my door?
NightKeeper fits gaps between 5mm and 15mm, which covers almost every standard door, including the warped or older frames common in budget stays.
How loud is the alarm, really?
130 decibels, far louder than a smoke alarm. If someone pushes on the door, the vibration sensor sets it off straight away, loud enough to wake you and alert everyone nearby.
Does it work on carpet and hard floors?
Yes. The wedge grips on carpet, tile, timber and laminate, so it holds the door firm as well as sounding the alarm.
Is it easy to travel with?
Very. It's small and light enough to slip into a handbag, backpack or carry-on, and there's nothing to set up when you arrive.
What if it is not for me?
You're covered by our 30-day hassle-free returns. If it isn't the peace of mind you hoped for, just send it back.
Peace of mind, pocket-sized
Stop checking the lock. Starting tonight.
Wherever you're sleeping next, NightKeeper has the door covered, so you can switch off and actually rest.
Small enough for any bag, ready in seconds, and backed by our 30 day guarantee.
- 130dB alarm
- Ships from the US
- 30 day money back guarantee
