Sleep apnea, in which breathing stops or gets very shallow during sleep. Each pause typically lasts 10-20 seconds or more, and can occur 20 to 30 times an hour.
Insomnia, which includes difficulty falling asleep, difficulty staying asleep, waking up too early and/or poor quality of sleep.
Restless Legs Syndrome (RLS), characterized by a strong, often uncontrollable urge to move your legs immediately before sleep, or other odd feelings like burning, prickling, itching or tingling.
Periodic Limb Movement Disorder (PLMD), in which patients have repetitive, uncontrollable and often imperceptive muscle spasms during non-REM sleep.
Narcolepsy, sometimes called “sleep attacks,” means falling asleep at unusual times and in awkward places.
Parasomnias, a category of undesirable physical or verbal behaviors during sleep, such as sleepwalking, bed-wetting, teeth grinding, frequent nightmares, night terrors, nocturnal seizures or sleep paralysis.