Published 19 August 2026
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Most falls at home happen in the few seconds after someone stands up, and if you are asleep in another room you find out afterwards. A bed or chair sensor alarm closes that gap: a pressure pad under the sheet or on the seat notices the weight lift, and a pager in your room goes off before the person is on their feet. Here is how to choose one, and five we rate.
How to choose a bed or chair alarm
Pad or motion sensor? A pressure pad triggers when weight leaves the bed or chair, which gives you a warning as the person sits up. A passive infrared motion sensor triggers when someone moves past it, usually beside the bed, which gives you a warning once they are already standing. Pads give you more time. Motion sensors cost less and there is nothing to lie on.
Check the pager range and whether it is honest. Advertised ranges of 100 to 500 feet are line of sight. Through two brick walls and a floor, expect a fraction of that. If your bedroom is at the other end of the house, buy a set with a stated long range and test it on day one.
Volume, vibration and tone. You want a pager that can be loud enough to wake you and a bedside unit that is quiet at the patient end. An alarm that sounds in the room it monitors will startle and distress someone with dementia, and some people will then get up to investigate the noise.
Look at how it is powered. Mains-powered pads with a battery backup are the most reliable. Battery-only sets are simpler to place but need a routine for checking them, and a flat battery is a silent alarm.
Think about dignity and consent. These are monitoring devices. Where the person has capacity, they should agree to it. Where they do not, the decision needs to be made in their best interests, and it is worth writing down why. Being told you are being watched is easier to accept than discovering it.
The best bed and chair sensor alarms
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Best overall: Lunderg Wireless Bed and Chair Alarm Set
The most complete set here: a pad that works on a bed or a chair, a pager with a genuinely useful range, adjustable volume and a vibrate mode so you can be alerted without waking a partner. Lunderg is one of the more established names in this category and the build quality shows in the connector, which is where cheap pads fail first.
The catch: the dearest in this comparison, and the pad still needs replacing every year or two with daily use. Around £115.
| Photo | Title | Price | Buy |
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| Lunderg Wireless Bed & Chair Alarm Set for Elderly & Fall Prevention | £114.95 |
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Best bed pad: Bed Sensor Pad and Pager for Dementia Care
A straightforward bed pad and pager pair at a sensible price. The pad goes under the bottom sheet, the pager sits in your room, and it alerts when weight lifts off. Nothing clever, which in this category is a compliment.
The catch: bed only, so you need a second pad if you also want to cover a chair. Around £66.
| Photo | Title | Price | Buy |
|---|---|---|---|
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| Bed Sensor Pad & Pager Bed Alarm for Elderly Dementia Patients – Fall Prevention Sensor with Pressure Motion Detection, Dementia Patients Caregiver Fall Prevention 13”x32” Pad (Bed Sensor Pad) | £65.99 |
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Best chair pad: Veanvoky Chair Sensor Pad and Pager
Sized and shaped for a seat rather than a mattress, which matters because a bed pad on a chair often sits under a cushion and stops registering. Useful for the person who dozes in an armchair in the afternoon and tries to get up unaided.
The catch: a seat pad is visible and some people will move it or sit around it. Around £60.
| Photo | Title | Price | Buy |
|---|---|---|---|
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| Veanvoky Chair Sensor Pad & Pager Bed Alarm for Elderly Dementia Patients – Fall Prevention Sensor with Pressure Motion Detection, Dementia Patients Caregiver Fall Prevention (Chair Sensor Pad) | £59.99 |
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Best floor mat: TabTime Pressure Mat Alarm and Care Call
Goes on the floor beside the bed rather than under the person, so there is nothing to lie on and nothing to feel. It triggers when a foot lands on it, which is a slightly later warning than a bed pad but far more acceptable to someone who objects to being monitored in bed. TabTime is a UK supplier and the mat is built to take repeated standing.
The catch: the most expensive option here, and a floor mat is itself a trip hazard if it is not the low-profile bevelled kind laid flat. Around £130.
| Photo | Title | Price | Buy |
|---|---|---|---|
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| TabTime Pressure Mat Alarm and Care Call, Floor Sensor Mat, Pressure Sensor, Bed Alarm for Elderly, Simply Safe System | £129.99 |
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Best budget: SYNLETT Bed Alarm with Wireless Motion Sensor
No pad at all: a small infrared sensor you aim across the side of the bed and a plug-in pager. Under thirty pounds, nothing under the sheet, and it takes five minutes to set up. For a light-touch warning that someone is out of bed, it does the job.
The catch: it alerts once the person is already up and moving, and pets or a carer walking past will set it off. Around £26.
| Photo | Title | Price | Buy |
|---|---|---|---|
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| SYNLETT Bed Alarm Caregiver Pager with Wireless Motion Sensor | £25.64 |
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Frequently asked questions
Do bed alarms actually prevent falls?
They do not stop a fall on their own. What they do is get a carer to the person while they are still sitting on the edge of the bed. Research on alarms used alone in hospitals has been mixed, but at home, where one carer is asleep in another room, the warning is often the whole difference. Pair it with a clear path, a night light and a bed at the right height.
Where should a bed sensor pad go?
Under the bottom sheet, across the bed at hip and buttock level, with the connector lead running off the side away from where the person gets out. Not under the mattress, where it will not register, and not directly against skin.
Can I get a bed alarm from social services?
Often yes. Many councils provide sensor alarms as part of a telecare package after an assessment, sometimes free and sometimes for a weekly charge, and telecare can link to a monitoring centre rather than to a pager in your house. Contact your local council adult social care team and ask about telecare before buying, especially if nobody is in the house overnight.
Will the alarm wake the person in bed?
It should not. Choose a set where the sound comes from the carer pager and the bedside unit is silent or set to its lowest volume. An alarm sounding in the bedroom of someone with dementia usually makes the situation worse, not better.
How long do sensor pads last?
Typically one to two years of nightly use. They fail from repeated flexing at the cable entry point. If your alarm starts triggering at random or stops triggering reliably, replace the pad rather than the whole set.
For alerts the person carries rather than lies on, see our guide to personal alarms for the elderly and our dementia care guides.
Published 19 August 2026
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