If you wake up at 6 am on weekdays and sleep in later on the weekends to 9 am, you’re confusing your brain and your body’s natural rhythms. On the weekends you can sleep in but keep it within 15-30 ...

A doctor has revealed a mathematic formula that ensures you wake-up feeling ready for the day, after being 'obsessed with ...

Puza says that a simple math formula can reveal your “ideal bedtime” so you wake up feeling your best — and it’s not just about hitting the sack earlier. “Does your nap feel more restful than a full ...

You did everything right: went to bed at a reasonable hour, didn’t look at your phone before dropping off and slept in a dark ...

Dr Charles Puza told his 811,000 followers on Instagram how to calculate their perfect bedtime to stop feeling groggy after an eight hour sleep.