Insomnia

Sleep disorders can be a nightmare (no pun intended), and they make for diagnosable medical conditions that may need to be treated by a professional. Insomnia is the most common sleep disorder there is, and it’s characterized by difficulty falling or staying asleep. Stress is often considered to be a relevant cause of insomnia.

Other sleep disorders include sleep apnea (difficulty maintaining a normal breathing pattern while asleep), RLS or restless leg syndrome, and parasomnia (caused by involuntary physical movements that disrupt sleep). There’s also narcolepsy, a chronic sleep disorder involving excessive daytime drowsiness.