The lion and bear chronotypes of the world are your classic early risers, while the wolf and dolphin chronotypes tend toward waking later in the day. And when you know which of the four you are, you can suit your schedule and lifestyle to the needs of your type and, moreover, your circadian rhythm. Here’s a quick look at the four chronotypes: Lions tend to be leaders, or chief operating officer types, he notes, adding that they also like to make daily lists, going from step one, to two, to three, in order. “They are natural early risers, driven and focused, and highly productive in their careers,” Breus explains. Socially, however, the lion chronotype can have some difficulties. According to Breus, they tend to be “intense,” and because they like to go to bed early, they’re not much for the party scene. “It is very difficult for them to change their schedules successfully,” he adds. If you’re doing something more mindful, like yoga, 8 a.m. or 5 p.m. would be good times for that. And strength training, Breus says, is best for lions from 2:30 to 5 p.m. In addition to that, of course, it never hurts to lean on good sleep hygiene practices like maintaining a bedroom that’s conducive to sleep (i.e., cool, dark, and quiet), getting lots of natural light during the day and keeping the lights dim into the evening, and taking a sleep supplement, like mbg’s sleep support+, if you could use a little extra help falling or staying asleep.* Check out our full guide to getting high-quality sleep for more tips.