Here, a hotel general manager explains how a strict sleep routine helps her juggle late nights with early starts - and always being on call.

Name: Samantha Fulton-Kandou

Profession: Hotel general manager at ME London

Ideal amount of sleep: 10 hours

Actual amount of sleep: seven hours, five minutes

Describe your sleep quality in three words: light, good, interrupted

Rate your sleep out of 10: 7

Sleep is very important to me – I plan my whole day and evening around the fact that I need to get a certain amount of it. My dream would be to nod off for 10 hours a night, but I usually aim for around eight. I’m an early bird and I always wake up first thing in the morning, so the earlier I can get to bed, the more sleep I can get. I use the bedtime mode on my iPhone to remind me to start getting ready for bed at 9.30pm. I normally go to bed around 10.45pm and wake up at 5.50am, meaning I get precisely seven hours and five minutes of sleep.

This doesn’t always happen though. I’m a creature of habit so I always follow the same routine, although sometimes an emergency will come up that needs my attention. As general manager, I need to be available. One night I might have a team dinner to attend, while other evenings there will be clients to entertain or events at the hotel that I have to go to. When we’re busy, which is usually two or three times a week, I have to stay late.

I find it really difficult to switch off when this happens. My mind will still be buzzing from such a hectic day, so I have to really force myself to relax and go to sleep. And even if I go to bed at 1.30am, my body clock will still wake me up at 5.50am.

Stylist Sleep Diaries: Why I can never switch off, even when I’m asleep