Your body has a built-in clock called the circadian rhythm, governed by hormones like melatonin and cortisol. This rhythm determines when you feel sleepy or alert and is influenced by light exposure, meal timing, and screen use.
Going to bed at erratic hours disrupts this rhythm, making it harder to fall asleep and reducing sleep quality.
Aligning your sleep schedule with your natural rhythm—ideally going to bed and waking up at consistent times—can improve focus, mood, and immune function.