Sleepiness - during the day; Hypersomnia; Somnolence
Drowsiness refers to feeling abnormally sleepy during the day. People who are drowsy may fall asleep in inappropriate situations or at inappropriate times.
Excessive daytime sleepiness (without a known cause) may be a sign of a sleep disorder.
Drowsiness may be due to the following:
You can relieve drowsiness by treating the cause of the problem. First, determine whether your drowsiness is due to depression, anxiety, boredom, or stress. If you are not sure, talk with your health care provider.
For drowsiness due to medicines, talk to your provider about switching or stopping your medicines. But, DO NOT stop taking or change your medicine without first talking to your provider.
Do not drive when drowsy.
Your provider will examine you to determine the cause of your drowsiness. You will be asked about your sleep patterns and health. Questions may include:
Tests that may be done include:
Treatment depends on the cause of your drowsiness.
Chokroverty S, Avidan AY. Sleep and its disorders. In: Daroff RB, Jankovic J, Mazziotta JC, Pomeroy SL, eds. Bradley's Neurology in Clinical Practice. 7th ed. Philadelphia, PA: Elsevier; 2016:chap 102.
Hirshkowitz M, Sharafkhaneh A. Evaluating sleepiness. In: Kryger M, Roth T, Dement WC, eds. Principles and Practice of Sleep Medicine. 6th ed. Philadelphia, PA: Elsevier; 2017:chap 169.BACK TO TOP
Review Date: 7/7/2019
Reviewed By: Ryan James Kimmel, MD, Medical Director of Hospital Psychiatry at the University of Washington Medical Center, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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