A small radar disc by the bed reads resting heart rate and breathing through the duvet, every night. In care settings it has shown a change an average of 4 to 6 days before a diagnosis. Two ways to have it: the XK300 Essence, FDA-cleared and prescribed through a remote-monitoring provider, and Kardian Somily, the same sensor as a wellness product for your own bedroom.

The clinical device, FDA-cleared since 2021. Continuous heart rate and breathing from your bedroom to the clinician who looks after you. If your doctor or care provider runs a remote-monitoring programme, they can prescribe it for you.

The same sensor as a wellness product you buy for your own bedroom. Your resting heart rate, breathing, movement and time in bed, compared with your own nights. Wi-Fi or Bluetooth. Not a medical device.
Same placement for the Essence and for Somily. Two strips of tape, one cable to a USB plug. Then go to sleep.

About 1.5 metres from the floor, on your side of the bed. If you share the bed, left or right above you. If you sleep alone, the centre.

It does not have to sit high. Closer to the body, just above the mattress, keeps the cable out of sight.

Out of sight between the wall and the headboard, as long as the bed does not need to sit flush to the wall and the headboard is not a solid metal plate.
No band, no ring, no patch. Nothing to remember at bedtime.
No lens. No microphone. It reads movement, not pictures or sound.
USB power from the wall. It is never flat in the morning.
Six to ten thousand readings a night. Taken only when you are still, because that is when they mean something.
It learns your own resting heart rate and breathing, night after night. Then it compares each night with yours, not with a chart.
Illustrative. Sixty nights of one person. The shaded band is their own usual. The last ten nights sit outside it.
In the morning, last night sits beside your own recent nights, in plain words. No grades, no colours to decode. The same picture reaches a clinician with the Essence, and reaches you with Somily.
Grey dots are your own recent nights, on your own scale. Blue is last night. Illustrative.
“Compared with your last seven nights: breathing higher, heart rate similar, longer in bed.”
That is the whole message. Your resting breathing ran a little faster all night, and your body did more work while you slept. It is often why a night that looked long still felt short.
Your body fighting something off, a late meal, a stressful week, a drink too many. Most shifts settle in a day or two, and you can watch them settle.
It does not diagnose anything and it is not an alarm. If a shift keeps up for several days, consider checking in with a healthcare provider.
Two nights can average the same breaths per minute and feel nothing alike. The sensor keeps the spacing between breaths, not just the count.
Both nights average fifteen breaths a minute. Only the rhythm differs. Illustrative.
How clean and regular each heartbeat looks to the radar, tracked against your own nights. In Somily, a wellness trend on the Biohacker plan. In the XK300 Essence, investigational and part of an ongoing study.
Strength and rhythm, read from chest movement. Illustrative. A wellness measure, not a medical one.
Nothing to start, nothing to sync, nothing to remember. The morning summary is waiting on your phone.
A small light shines into your wrist or finger and an algorithm works backwards to a number. It has to guess through movement, skin tone and fit, and it needs charging.
Radar sees the chest rise with each breath and move with each heartbeat, through the duvet, from the wall. Nothing touches you. Readings are taken only while you are still.

Both products use a 7.3 gigahertz impulse radar with a four centimetre wavelength. That is why it reads through a duvet in any sleeping position, and why the same radar is trusted in hospitals and care homes.
The XK300 is the radar Xandar Kardian has placed in hospitals, nursing homes and home care for years. The Essence is its prescription form, for your bedroom through your care provider. Somily is the wellness version you buy yourself.
Retrospective findings from the clinical XK300 in nursing homes, and published work. Average early notice before the diagnosis was recorded. Not cleared indications.
Kardian Somily is a wellness product. It is not a medical device, does not diagnose, and is not an alarm. The XK300 Essence is a prescription device supplied through remote-monitoring and care providers.
Somily is the consumer twin of the XK300: the same sensor, made for your own bedroom, with a membership that grows with you.
The basics, straight to your phone.
Every night, compared with your own.
Everything above, plus guidance.
Plan prices and what is included with the device are shown at kardian.com.
If a clinician or a remote-monitoring provider looks after you, they supply the XK300 Essence on prescription. For your own wellness at home, Kardian Somily.
No. There is no lens and no microphone in the disc. Radar reads movement. It cannot see a face or hear a word.
Yes. The wavelength passes through a duvet, a topper and clothing, in any sleeping position.
Above the headboard at about 1.5 metres, near the bed corner just above the mattress, or behind the bed frame. Two strips of tape, one cable to a USB plug.
No. It runs on USB power from the wall, so it is always on and never flat.
The radar pulse is far weaker than the Wi-Fi already in your home. The same radar has been used in hospitals and nursing homes since 2021.
No. Somily is a wellness product for your own bedroom. The XK300 Essence is the FDA-cleared, prescription version, set up through a remote-monitoring or care provider.
Answers are generated and grounded in this page. For anything about your health, talk to a healthcare provider.
Programmes, evidence and pricing for organisations live on our clinical site.