Common Symptoms of Sleep Disorders*
| Disorder | Symptoms |
|---|---|
| Insomnia | Difficulty falling asleep; difficulty maintaining sleep; leg discomfort interfering with sleep (restless legs syndrome); insufficient sleep at night; non-restorative sleep |
| Hypersomnolence | Difficulty staying awake in the daytime (insufficient sleep syndrome); excessive daytime sleepiness and sudden loss of muscle tone in moments of emotion (narcolepsy/cataplexy) |
| Sleep-disordered breathing | Loud snoring, witnessed pauses in breathing, gasping to breathe when asleep (obstructive or central sleep apnea) |
| Parasomnia | Trouble with dream content or quantity (nightmares, epic dreaming); eating in the middle of the night (sleep-related eating disorder); excessive movement in bed when asleep (periodic limb movement disorder); abnormal behaviors arising from sleep (REM behavior disorder; nocturnal seizure disorder); bruxism (grinding) |
* Related sleep disorders (per the International Classification of Sleep Disorders) are included in italics.