Insomnia can be caused by a number of reasons. Many people may have insomnia at some point but they would start to notice only when it becomes chronic. Insomnia can occur independently or sometimes it can be a result of another problem.
Some of the major factors that can cause sleeping problems include:
Medications: Use of certain drugs, caffeine, alcohol, pain killer, nicotine
Medical conditions: Gastrointestinal problems, certain allergies, heart diseases, breathing difficulties, Alzheimer’s diseases, Obsessive compulsive disorder
Psychological problems: Depression, stress, anxiety, fear
Other common causes includes the below: