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Sleep plays an important role in restoration and memory processing and overall health. Normally, sleep is governed by a circadian rhythm of around 24 hours but a variety of disorders can affect sleep, such as obstructive sleep apnea or insomnia. Furthermore, sleep can also be affected by influences such as stress, alcohol consumption, diet and other factors.
Tracking sleep[edit | edit source]
A variety of methods for tracking sleep exist. The academic gold standard that is used in sleep laboratories is polysomnography (PSG), which measures brain activity through EEG (Electroencephalogram), often complemented by ECG, respiration, leg movement and other metrics .
While some consumer sleep tracking devices, such as the Muse S headband make use of EEG information, most wearable devices to date rely on data from heart rate, accelerometer, and increasingly temperature sensors. A number of academic studies have compared the accuracy of consumer wearables to that of PSG, overall finding mixed results .
Sleep tracking devices/apps[edit | edit source]
- Muse S, an EEG (Electroencephalogram) headband
- Fitbit devices, wrist-worn wearables that track sleep
- Oura Ring, a finger-worn tracker which according to a study done by the company shows a 96% accuracy for sleep/wake prediction and 79% for detecting different sleep stages
- Rise "pulls historical data from your phone to tell you your sleep need, sleep debt, and the best time for you to go to sleep."
- Withings Sleep, a mat that can be put under the mattress to record sleep
- eight sleep pod Mattress with programmable temperature regulation as well as monitoring of many variables and api. Just 3k$ !!
- OpenEEG Open Source , EEG
Sleep phases[edit | edit source]
Most wearables will divide sleep into 4 different sleep stages:
- light sleep
- deep sleep
- REM (rapid-eye movement) sleep
Interventions[edit | edit source]
Some apps and devices help wake better.
Red wine with sulfites.
Research[edit | edit source]
National Sleep Foundation advises against reducing amount of sleep and even polyphasic sleep like siestas.
References[edit | edit source]