Wearables for capturing sleep and circadian information across day/night and long-term.

Wearables that can capture sleep and circadian information-across the day/night and over time--should be included. Activity monitors, EEG, ECG and Oximetry measurement are increasingly accessible with miniaturization of technology. Consumer interest in many of these devices has accelerated development and driven costs down. Analysis of these data-perhaps using open-platforms- hold promise for deriving quantitative measurements that predict health and disease.