Online sleep questionnaire screenshot Quality12-Quality15, showing appearance as seen by participants circa 2022

This resource can be downloaded or viewed using the link: 09_sleep_QUALITY12_QUALITY15.png

If you have wget available (typically on linux systems), then you can also obtain a copy using the command

 wget  -nd  biobank.ctsu.ox.ac.uk/ukb/ukb/images/09_sleep_QUALITY12_QUALITY15.png