The main causes of insomnia are:

- Unfavorable environment in which you sleep - excessively hard or soft bed, extraneous noises, heat or cold;
- A change of sleeping place - a trip or a move to a new place of residence;
- Stress, anxiety, depression;
- Various illnesses that make you feel sick
- heart rhythm disorders
- mental disorders and illnesses: depression, schizophrenia, ADHD, etc.;
- hormonal changes in the body
- coffee abuse