Previous falls
Repeated incidents signal ongoing risk that should not rely only on scheduled rounds.
Patient bed alarms
Patient bed alarms for elderly and hospital care
A fall in a care home rarely comes out of nowhere. Most start with a bed exit that nobody reached in time.
This guide covers every main bed alarm type, what to look for when choosing one, and how to match the right sensor to your residents and your ward.
This guide covers every main bed alarm type, what to look for when choosing one, and how to match the right sensor to your residents and your ward.
Definition
What is a patient bed alarm?
A patient bed alarm is a sensor that detects when a resident leaves, shifts, or moves toward leaving their bed and sends a real-time alert to caregivers.
Traditional systems use a pressure pad under the sheet or mattress. When the resident's weight lifts off, the alert fires. Under-mattress and motion-based options work without direct contact, so there is no pad to displace during linen changes.
Unsupervised bed exits are a leading cause of falls in care homes, especially overnight when staffing is thinnest.
Traditional systems use a pressure pad under the sheet or mattress. When the resident's weight lifts off, the alert fires. Under-mattress and motion-based options work without direct contact, so there is no pad to displace during linen changes.
Unsupervised bed exits are a leading cause of falls in care homes, especially overnight when staffing is thinnest.
Resident fit
Who needs a bed alarm?
Bed alarms are used for residents who cannot safely leave bed without assistance.
The right setup depends on mobility, cognition, medication, recovery stage, and the level of supervision available in the ward or home.
The right setup depends on mobility, cognition, medication, recovery stage, and the level of supervision available in the ward or home.
Dementia or cognitive impairment
Residents may forget to call for help or leave bed without understanding the risk.
Balance or gait problems
Unsteady movement makes any unsupported exit dangerous, especially at night.
Muscle weakness
Weakness limits the ability to recover from a stumble or misstep.
Sedating medications
Medication can impair coordination and reaction time during overnight exits.
Post-surgical recovery
Pain and residual anaesthesia can make independent movement unsafe.
Types of bed alarms
The four main bed alarm types
Bed alarms fall into four main types, each triggering at a different point in the exit sequence.
Pressure pads
A foam pad under the sheet that triggers when the resident's weight lifts off; simple to deploy but gives no room context.
Early-alert alarms
Detects the weight shift before the resident stands, giving staff a few extra seconds to respond.
Under-mattress sensors
Sits between mattress and base, fires before full exit, and nothing needs moving during linen changes.
Floor mats
Triggers when the resident steps onto it — simplest to deploy but fires after the resident is already up.
Sensor comparison
Which bed alarm type fits which situation?
Knowing what each type does is the first step. Which one fits depends on your resident, your building, and how staff receive alerts.
Running costs differ too. Surface pads wear with frequent linen changes and get replaced, while under-mattress and wireless sensors run on batteries and stay in place.
Guardian's sensors are wireless and need no drilling, so upkeep is a battery change rather than new cabling.
Running costs differ too. Surface pads wear with frequent linen changes and get replaced, while under-mattress and wireless sensors run on batteries and stay in place.
Guardian's sensors are wireless and need no drilling, so upkeep is a battery change rather than new cabling.
| Sensor type | Trigger point | Best for | Key limitation |
|---|---|---|---|
| Pressure pad | Weight lifts off pad | Single-room care, home settings | No location data; pad disrupted by linen changes |
| Early-alert | Resident shifts toward edge | High fall-risk residents, multi-bed wards | Requires correct pad positioning to stay accurate |
| Under-mattress | Pressure pattern changes pre-exit | Residents sensitive to contact; frequent linen changes | Higher cost than surface pads |
| Floor mat | Resident steps onto mat | Backup layer; low-risk notification | Triggers after exit - too late to prevent a fall |
Buying criteria
How to choose the right bed alarm
Six factors drive the decision. Compare them before the detailed breakdown:
| Factor | Low-risk / home care setting | Higher-risk / care facility |
|---|---|---|
| Mobility & cognition | Mobile resident: pressure-pad or floor mat | Mobile + cognitively impaired: early-alert sensor |
| Environment | Audible alarm in client's home is enough | 20-30 residents per ward needs silent, routed alerts |
| Alert routing | Local audio or single-carer app | Device-specific alert with room and bed context |
| Monitoring type | Active: pendant or call button acceptable | Passive: pressure pad, under-mattress, or motion sensor |
| System integration | Standalone alarm or single-carer app may be enough | Route alerts into nurse-call or call-bell workflows with room and bed context |
| Maintenance | Check battery status and replace pressure pads when wear affects sensitivity | Use serviceable sensors with clear battery alerts and a planned pad replacement schedule |
Selection context
Mobility and cognitive state
A mobile resident who can stand unaided needs an early-alert or pressure-pad alarm. These trigger before a full bed exit, giving staff time to respond.
A largely immobile resident may only need a floor mat as a secondary safeguard. Unsupported standing is unlikely, so a floor exit alert is usually sufficient.
A largely immobile resident may only need a floor mat as a secondary safeguard. Unsupported standing is unlikely, so a floor exit alert is usually sufficient.
Home care vs. care facility
In a home care setting with a single carer visiting a client, a local audible alarm is often enough. In a care facility with 20-30 residents per ward, routed alerts are usually a better fit because staff need room and bed context immediately.
Choose the alert method based on who needs to respond and how quickly they can reach the bed. A carer visiting a home care client may do fine with local audio, while ward staff usually need a quiet alert sent to the right device with the room and bed named.
Choose the alert method based on who needs to respond and how quickly they can reach the bed. A carer visiting a home care client may do fine with local audio, while ward staff usually need a quiet alert sent to the right device with the room and bed named.
Alert routing
Location-aware routing sends the alert to the right caregiver with the room and bed attached, so staff can respond directly instead of first figuring out where to go. That matters most on larger wards, where one caregiver may be covering several residents at once.
For home care settings, consider where the carer will be during a visit. Some systems reach a carer anywhere in a client's home or off-site via a smartphone app; others are local audio-only.
Systems that integrate with an existing nurse-call setup route alerts through the same workflow staff already use, which reduces the learning curve.
For home care settings, consider where the carer will be during a visit. Some systems reach a carer anywhere in a client's home or off-site via a smartphone app; others are local audio-only.
Systems that integrate with an existing nurse-call setup route alerts through the same workflow staff already use, which reduces the learning curve.
Passive vs. active monitoring
Pendants and call buttons only work if the resident remembers to press them. Falls and confusion events often remove both the memory and the ability to press at the same time.
Passive sensors (pressure pads, under-mattress sensors, motion detectors) require no action from the resident and are the safer default for high-risk and cognitively impaired residents. Key differences:
Passive sensors (pressure pads, under-mattress sensors, motion detectors) require no action from the resident and are the safer default for high-risk and cognitively impaired residents. Key differences:
- Passive sensors — trigger automatically on movement or bed exit; no resident action needed
- Active devices — pendants and call buttons; resident must initiate the alert
- Who benefits most from passive — residents with dementia, post-surgical patients, anyone with high fall risk
Standalone vs connected
Standalone alarms detect. Connected systems guide response.
The limitation on busy wards is usually not the bed sensor itself. It is the lack of context after the alarm fires.
| Feature | Standalone alarm | Connected system (Guardian) |
|---|---|---|
| Alert destination | Audible beep at nurses' station | Named alert to caregiver's phone or tablet |
| Room and bed location | None | Room number and bed shown on floor plan |
| False alarm filtering | None | Configurable rules per resident and time of day |
| Response time log | None | Timestamped log with acknowledgement record |
| Incident documentation | Manual, paper-based | Dashboard with shift-level response data |
| Wireless range testing | Not applicable | Pilot available before full ward rollout |
Care-home reality
When a bed alarm isn't enough
Bed exit monitoring still matters. The limit on busy wards is the standalone audible alarm, not the sensor itself.
The issue is context. Staff need to know which resident needs help, where to go, and whether the alert signals real fall risk.
Three common ward situations show why connected bed exit monitoring works better than a basic bedside alarm.
The issue is context. Staff need to know which resident needs help, where to go, and whether the alert signals real fall risk.
Three common ward situations show why connected bed exit monitoring works better than a basic bedside alarm.
Advanced dementia changes movement patterns.
Some residents shift weight slowly or leave the bed without fully crossing a pressure pad threshold.
The alarm sound can increase agitation.
For residents with cognitive impairment, a sudden audible alarm can trigger rushing instead of waiting for help.
False positives wear staff down.
When alerts fire too often, staff start to deprioritise or disable them.
Guardian in practice
Sensors that cover the moments that matter
Three sensor types cover the moments that matter most.
An alert from Guardian is not a generic beep. Staff receive a notification tied to a specific room, bed, and resident, so they know exactly where to go before they move.
An alert from Guardian is not a generic beep. Staff receive a notification tied to a specific room, bed, and resident, so they know exactly where to go before they move.
Bed exit sensors
Detect when a resident leaves their bed.
Motion sensors
Track movement in rooms and corridors.
SOS call buttons
Let residents summon help directly.
Smarter alerts and a clearer management view
Smart alert logic filters out routine movement. Alerts only fire at preset times and flag when a resident has not returned to bed within a set window.
Staff who used to walk every room on a round now respond only when a room actually needs them. Those hours add up. Guardian calculates the saving against your local wage rate so the number is real, not estimated.
The Guardian Portal is a web-based dashboard accessible from any browser, with no software to install. Care managers can track safety metrics, configure notification rules, and review night summaries from one screen.
Staff who used to walk every room on a round now respond only when a room actually needs them. Those hours add up. Guardian calculates the saving against your local wage rate so the number is real, not estimated.
The Guardian Portal is a web-based dashboard accessible from any browser, with no software to install. Care managers can track safety metrics, configure notification rules, and review night summaries from one screen.
6-8 weeks
Pilot duration
Run Guardian on a single ward before deciding on a broader rollout.
1 week
Typical go-live window
Sensors can be placed and mapped without drilling or cabling.
30+
Incidents detected
One pilot detected more than 30 events that would otherwise have gone untracked.
€1000+/mo
Capacity freed
One pilot ward freed up caregiver capacity by reducing unnecessary rounds.
Common questions
Patient bed alarm questions
These answers cover the practical and regulatory questions care teams ask before choosing a bed exit monitoring system.
Why can't nursing homes use bed alarms? +
Nursing homes can use bed alarms, but standalone audible alarms raise clinical and regulatory concerns.
In the US, CMS evaluates restrictive alarm use under F-Tag F604 (42 CFR §483.12(a)(2); CMS Appendix PP). Facilities must document a medical symptom and try less-restrictive alternatives before using a restraint.
A practitioner order is required, and residents retain the right to refuse.
Three findings explain why facilities are cautious:
A loud beep does not identify the resident, urgency, or destination.
Guardian alerts name the room, bed, and resident, so staff know where to go before leaving the corridor.
In the US, CMS evaluates restrictive alarm use under F-Tag F604 (42 CFR §483.12(a)(2); CMS Appendix PP). Facilities must document a medical symptom and try less-restrictive alternatives before using a restraint.
A practitioner order is required, and residents retain the right to refuse.
Three findings explain why facilities are cautious:
- Clinical evidence: Randomised trials have not shown that standalone bed and chair alarms prevent falls.
- Alarm fatigue: One study recorded 52% false activations, while another reported over 80% false. At those rates, staff can start deprioritising alerts.
- Reduction findings: Facilities that reduced alarm use saw fall rates hold steady or improve. Protection depended on the quality of the response.
A loud beep does not identify the resident, urgency, or destination.
Guardian alerts name the room, bed, and resident, so staff know where to go before leaving the corridor.
Is there an alarm for when someone gets out of bed? +
Yes. Four device types can alert caregivers the moment a resident leaves their bed.
Standard pressure pad alarms sit under the bed sheet on top of the mattress and trigger when the resident's weight lifts off the pad.
The types section above covers the full range of sensor options and their trade-offs.
Key factors to compare when choosing a bed exit alarm:
Position-change alarms can be classified as physical restraints for some residents if they inhibit freedom of movement. They are not automatically considered non-restrictive alternatives under CMS guidance.
Bed exit alarms work best as one layer in a broader fall-prevention plan, alongside scheduled rounds and individualised risk assessments.
Standard pressure pad alarms sit under the bed sheet on top of the mattress and trigger when the resident's weight lifts off the pad.
The types section above covers the full range of sensor options and their trade-offs.
Key factors to compare when choosing a bed exit alarm:
- Sensitivity and false-alarm rate: Traditional bed-absence sensors recorded a 31% nuisance-alarm rate; advanced sensor systems can use rules to reduce nuisance triggers
- Alert routing: Direct to staff smartphones, tablets, or nurse-call systems
- Connectivity: Wireless versus wired
- Sensor type: Pressure pads, infrared beam sensors, radar sensors, or wearable tags each suit different resident profiles
Position-change alarms can be classified as physical restraints for some residents if they inhibit freedom of movement. They are not automatically considered non-restrictive alternatives under CMS guidance.
Bed exit alarms work best as one layer in a broader fall-prevention plan, alongside scheduled rounds and individualised risk assessments.
Are personal alarms for the elderly free? +
It depends on where you live. Free or subsidised alarms exist in several countries. Whether you qualify depends on where you are and your care situation.
Free or subsidised personal alarms are available in several countries. UK councils can provide them after a social care needs assessment, US Medicaid HCBS waivers cover personal emergency response systems in over 40 states, and Ireland's Seniors Alert Scheme offers free equipment for people aged 65 and over living alone with limited means.
For care homes, the question is usually different. The cost of a monitoring system needs to be weighed against the staff time it saves and the incidents it catches. Guardian's pilot runs on a single ward over 6 to 8 weeks and gives you a full impact report before any commitment to a wider rollout.
Free or subsidised personal alarms are available in several countries. UK councils can provide them after a social care needs assessment, US Medicaid HCBS waivers cover personal emergency response systems in over 40 states, and Ireland's Seniors Alert Scheme offers free equipment for people aged 65 and over living alone with limited means.
For care homes, the question is usually different. The cost of a monitoring system needs to be weighed against the staff time it saves and the incidents it catches. Guardian's pilot runs on a single ward over 6 to 8 weeks and gives you a full impact report before any commitment to a wider rollout.
Move beyond standalone bed alarms
Turn bed exit detection into faster care response
Guardian gives care teams the room, bed, resident context, and response history behind every alert. Start with one ward and receive a full pilot report with response times, incident data, and a rollout plan before any wider commitment.
Author
Aleks Timm
Aleks Timm leads Guardian and builds privacy-first operations technology for care homes and home care providers. Teams get location-aware alerts they can act on, clearer situational awareness, and measured insight into how care work actually runs.
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