You've sorted the washing out
Emptied and refilled the dishwasher
Cleaned the kitchen
Watched Casualty on iPlayer
Cuddled the dogs
and even contemplated hoovering (except that it would wake the other half up).
This is not to do with switching shift pattern - this is a chronic problem I've developed since fifth year of medical school.
Consequently my Kindle and I are very well acquainted and I'm currently watching Total Recall (very quietly) in bed with the subtitles on
Shift starts in 7 hours