Adam Sensor
A sleep tracker, but for erections.
Get a clearer picture of your physical health. The Adam Sensor records how many erections you have while you sleep, when they happen, and how long each one lasts.
No subscription. Free shipping. 2-year warranty.
Track erections while you sleep- Peace of mind, or data for your doctor
- Private results on your phone
What happens while you sleep can tell you a lot.
Most men have 3 to 5 erections a night without noticing. They depend on blood flow, hormones, nerves, and sleep, so they’re a useful signal of how your body is doing.
It’s a wellness tracker, not a diagnosis. If anything worries you, take your results to your doctor.
From bedtime to results.
A few seconds before bed. A clearer picture in the morning.
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Put it on before bed
It sits at the base of your penis. Putting it on takes a few seconds.
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Sleep as normal
No buttons to press. It works on its own until morning.
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Check your results in the morning
After 3 nights the Adam app gives you a baseline score. Then once every week or two is enough to see how your nights change.
Wake up to more than a guess.
The Adam app puts your night into numbers you can follow. See individual sessions and how your patterns change over time.
Your results stay in the Adam app, which is free on iPhone and Android. Explore Adam’s app and sensor details.
- Erection episodes
- How many, when they happened, and how long each lasted.
- Time spent erect
- The total across the night.
- Erection quality
- A percentage compared with your personal baseline.
- Recording time
- How long the sensor recorded, to put the results in context.
Good to know.
A little more about living with your sensor.
What does it measure?
It records how many erections you have while you sleep, when they happen, and how long each one lasts.
What does it feel like?
It weighs 20 g, with a flexible, adjustable band that sits at the base of your penis. It’s designed for overnight tracking without constriction.
Will it work with my phone?
The Adam app is free on iPhone and Android and connects over Bluetooth. Your results appear in the Adam app.
What is AndroAgeâ„¢?
It’s Adam’s wellness score, which compares your nighttime patterns with averages across age groups. After three nights, you have a starting point to follow over time. It isn’t your biological age or a medical assessment.
Can Mojo see my results?
No. Your results are encrypted, and Mojo can’t see them.
How do I charge and clean it?
The battery lasts up to 14 hours and charges in about an hour over USB-C. The cable is in the box. To clean it, use an antibacterial wipe. It’s not waterproof, so keep it out of water.
Is there a subscription?
No. The sensor is a one-time purchase, and the Adam app is free. Free shipping and a 2-year warranty are included.
What does the research say?
A 2022 technical overview in The Journal of Sexual Medicine describes how Adam records nighttime changes in penile size and reports erection episodes and duration. It explains the technology; it doesn’t establish that the sensor treats erection difficulties.
A 2025 observational study presented at ICS-EUS reported improvements in confidence and sexual function among men with psychological erection difficulties after four weeks of tracking. Adam supplied the devices. These are early findings from a conference abstract, and the researchers say larger randomized trials are needed. Think useful information about your body, not a proven treatment.
