What is the most commonly experienced sleep disorder?

The most commonly experienced sleep disorder is insomnia. Insomnia is characterized by difficulty falling asleep or staying asleep, and it can have a significant impact on a person's overall health and well-being. Insomnia can be caused by a variety of factors, including stress, anxiety, depression, or other medical conditions. It can also be a side effect of medications and caffeine. There are a number of different treatments for insomnia including relaxation techniques, cognitive behavioral therapy, and medications.