Good sleep is an elusive luxury
People with insomnia tend to have difficulty falling asleep, or staying asleep as long as desired. Insomnia can be short term, lasting for days or weeks, or long term, lasting more than a month.
Insomnia can occur independently or as a result of another problem. Conditions that can result in insomnia include psychological stress, chronic pain, chronic health conditions, certain medications, and drugs such as caffeine, nicotine, and alcohol. Other risk factors include working night shifts and sleep apnoea.