Sleep disorders

Symptoms:

• awakening in the night
• difficulty falling asleep
• excessive daytime drowsiness
• loud snoring
• episodes of stopped breathing
• sleep attacks during the day
• daytime fatigue
• depressed mood
• anxiety
• difficulty concentrating
• apathy
• irritability
• loss of memory (or complaints of decreased memory)
• lower leg movements during sleep

Note: The symptoms may vary with the particular disorder.

Signs and tests:

• multiple sleep latency test
• polysomnography