A miniature actigraph worn to the wrist (Mini Motionlogger, Ambulatory Checking, Inc. Ardsley, NY) was utilised to evaluate sleep quality objectively, which makes it achievable to monitor sleep underneath purely natural situations with minimal distortions. The actigraph steps wrist exercise employing a piezoelectric element and translates wrist movements into https://www.youtube.com/watch?v=PgNzdZr0_hg