A miniature actigraph worn about the wrist (Mini Motionlogger, Ambulatory Checking, Inc. Ardsley, NY) was utilized To guage sleep quality objectively, rendering it attainable to watch sleep under pure instances with minimal distortions. The actigraph measures wrist activity using a piezoelectric aspect and translates wrist actions into an electrical https://www.youtube.com/watch?v=PgNzdZr0_hg