Drowsiness

Drowsiness refers to feeling abnormally sleepy during the day. People who are drowsy may fall asleep in inappropriate situations or at inappropriate times.

See also: Idiopathic hypersomnia

Sleepiness - during the day; Hypersomnia; Somnolence

Excessive daytime sleepiness (without a known cause) suggests that you have a significant sleep disorder. It is different from fatigue.

Depression , anxiety , stress , and boredom can all contribute to excessive sleepiness, but these conditions more typically cause fatigue and apathy .

• Having to work long hours or different shifts (nights, weekends)
• Medications (tranquilizers, sleeping pills, antihistamines)
• Medical conditions (such as hypothyroidism, hypercalcemia, and hyponatremia /hypernatremia)
• Not sleeping for long enough
• Sleep disorders (such as sleep apnea syndrome and narcolepsy)