Waking up tired after a poor night’s sleep is common. But what if you feel sleepy almost all the time-even after spending plenty of hours in bed? If you find yourself struggling to stay awake during the day, needing frequent naps, or feeling unrefreshed despite adequate sleep, you may be experiencing hypersomnia. This symptom can … Continue reading What Causes Hypersomnia? Understanding Why You Feel Excessively Sleepy