Circadian cycle, sleep, recovery, and stress level analytics for wearables.

Night Train’s technologies are developed for next generation smartwatches, fitness trackers, health, and wearable devices. With our help, you can offer the most meaningful, reliable, up-to-date biosignal analytics to the users of your wearable. Welcome on board!

Night Train Sleep™

Night Train Sleep is our patented deep learning powered solution for sleep analytics. It allows your users to learn valuable insights about the quality of their sleep – helping them to improve your habits to sleep better.

Unique Multi-Modal Reliability for Sleep Analytics

Night Train Sleep uses deep neural networks for sleep staging. In addition to industry-standard heartbeat intervals, it can utilise both movement and distal skin temperature data to further improve accuracy and reliability.

Input

Interbeat Intervals (IBI/RR)
Movement/accelerometer data (optional)
Distal skin temperature (optional)

Output

Hypnogram (stages: wake, REM, light, deep)
Sleep statistics (total times spent in each stage)
Overall sleep quality score
Sleep duration score
Sleep quality score

Versions

Our solution is available for deployment to different platforms. Night Train Sleep Embedded™ is designed to run on resource-scarce embedded platforms such as smart sensors, chipsets, and smart rings. It offers a very small memory footprint while maintaining good accuracy. Night Train Sleep Standard™is intended for platforms with more resources, such as mobile apps and smart watches. It offers cutting edge accuracy for the most demanding applications. In addition, we are able to tailor our solution to take full advantage of the resources available on the target platform to maximise the accuracy in your application.

Accuracy

Please contact us for a comprehensive report.

Evaluation

See for yourself, quick and easy, with your own data, whether Night Train Sleep can benefit you. There are two ways to do this: Our Cloud API for simple online access from your code, and Desktop (Windows) Evaluation Suite for offline evaluation. Contact us to get started.

Deployment

Night Train Sleep is available as a cloud-based API and a C/C++ library.

Night Train Cycle™

Night Train Cycle is our unique, patented solution for Circadian Cycle Analytics. It helps you to go to bed at the right time and fall asleep more quickly – improving the quality and restorative properties of your sleep.

Image 1

An example of distal skin temperature behaviour over time.

Uniquely Accurate Circadian Cycle Analytics

Night Train Cycle uses user’s distal skin temperature behaviour to detect the appropriate time for going to bed. This is based on the proven connection between blood melatonin levels and distal skin temperature.

Input

Distal skin temperature

Output

Recommended times to prepare for bed and go to bed

Night Train Beat™

Night Train Beat is our tool for advanced recovery analytics. It lets you reliably see whether you have recovered from training and other stressors and whether you are ready for new challenges.

HR+RMSSD_example.png — Image 3

An example of nightly heart rate (above) and heart rate variability (below) behaviour.

Accuracy through Selective Sampling

Night Train Beat’s recovery analysis is based on the parameters calculated from heart rate (HR) and heart rate variability (HRV) – much like other solutions on the market. However, these parameters vary significantly depending on the sleep stage. For this reason, Night Train Beat samples heartbeats selectively during the deep sleep stages, making it more reliable and accurate. This strategy is supported by the latest research on the subject.

Input

Interbeat Intervals (IBI/RR)
Hypnogram

Output

Recovery Score
Heart Rate statistics
Heart Rate Variability statistics

Night Train Stress™

Night Train Stress is our solution for mental stress analytics. It gives you insights into your mental stress situation and lets you see how you are coping with it.

Window into Your Mind

Rapid eye movement (REM) sleep is essential for learning and proper memory functionality. According to research, daily mental stress is reflected in the relative amount of REM sleep. Night Train Stress tracks this and enables you to see how you are coping with the mental demands of your daily life.

Input

Hypnogram

Output

Stress Level Score

About us

The people behind Night Train technologies are a unique mix of scientific, medical, engineering, and product creation professionals. Night Train collaborates closely with universities, hospitals and national institutions that work on the front line of people’s health and well-being. Our core competences are in biosignal analysis, machine learning, artificial intelligence and algorithm development.