So, what does it all mean? A sleep expert offers her thoughts

Dr Nerina Ramlakhan, sleep expert and professional physiologist, says: “Your energy levels feel very out of balance. You seem to be a night owl going to bed late and then sleeping into the morning.

“The time you go to bed and wake up is key to your energy levels and physiological balance; the sleep before midnight is important and most of our restorative sleep takes place before 6am. This means that you might be lying in to make up your hours of sleep, but a great deal of your sleep quotient is probably ‘junk food’ sleep.

“I also suspect you’re very dehydrated if you’re only drinking two glasses of water a day and a whole litre of Pepsi Max. The latter is likely to have a diuretic effect which will make you pee more at night (which you’re doing), and this will leave you even more dehydrated. It’ll also make your sleep non-restorative and maybe even add to your indigestion.”

“My energy levels are all over the place – what’s the secret to achieving balance?” A sleep expert answers your questions