Sleeping well isn't just about how much we sleep but it's also, and mainly, about the quality of sleep. If you're someone who feels groggy when you wake up and/or lethargic during the day, or if you suffer from sleep onset insomnia, sleep maintenance insomnia or other sleep issues, then listen up. What can you do about it? A lot. For example, sleeping from 10pm-5am will leave you with a ton more energy than sleeping from 12am-7am. This is due to your body following more closely to its circadian clock - the internal clock that's connected to nature's rhythm. Keep following for more tips on how to improve the quality of your sleep.