Online sleep questionnaire screenshot F1-F4, showing appearance as seen by participants circa 2022

This resource can be downloaded or viewed using the link: 22_sleep_F1-F4.png

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

 wget  -nd  biobank.ndph.ox.ac.uk/ukb/ukb/images/22_sleep_F1-F4.png