MONITOR YOUR SLEEP
Ask these questions over seven days to form the basis of a good sleep diary, says sleep expert Luke Gupta
1/ What time did you go to bed?
2/ How long did it take to fall asleep?
3/ How long were you awake in the night?
4/ What time did you wake up?
5/ What time did you get out of bed?
6/ How well did you sleep last night?
Now calculate your sleep duration and efficiency (time asleep ÷ time in bed x 100). Scores below 80 per cent indicate poor sleep.