What is Composite Scale of Morningness (CSM)?

The Composite Scale of Morningness (CSM) is like a scorecard that tells us how "morning person" someone is, from 1 to 60.

Imagine you have a friend who wakes up at the crack of dawn, jumps out of bed, and starts singing. That's a morning person! But if your other friend sleeps until noon and still needs extra pillows to get up, that’s a night owl.

The CSM helps scientists figure out where someone falls on this morning-to-night scale. It checks how early you wake up, how soon you feel ready for the day, and even how fast you go to sleep at night, like taking notes during a game of hide-and-seek!

Think of your body as a clock that needs winding up in the morning. The CSM gives you a number based on when your clock starts ticking. A higher score means you're more likely to be up and ready at sunrise, just like a little bird chirping at first light!

If your score is low, it means your body prefers to sleep in, kind of like a sleepy turtle that takes its time coming out of the shell.