It is defined as a transient state, exceeding the month-long, characterized by difficulty falling asleep or waking extreme ease. It manifests accompanied by psychosomatic expressions of anxiety, related to the negative feeling of not being able to sleep during the day creates a feeling of anxiety about dealing with bedtime. It is related to a situation of stress or emotional shock and is considered short-term insomnia and its duration ranges from one night to several weeks and never staying more than three months. This aspect is usually caused by episodes of unexpected changes that lead to psychological, behavioral and psychosocial factors. It's because of this traumatic situation where symptoms are triggered. The emotional or physical imbalance may be linked to one specific event (acute illness, job change, breakups, grief or change in environmental conditions in the room with increased noise or light). It usually appears in adulthood or maturity. The failure of the strategies for sleep disturbance further power of patients, who feel trapped in a vicious cyrcle of fatigue generated after a sleepless night and anxiety and concern for his dream generates insufficient them unable to sleep time. It mainly affects women and youth. Diagnosis manages a range of symptoms, that do not have to be together:
- Anxiety generated by desire or an inability to sleep.
- Frequent awakenings during the night, which is making the anguish of not getting enough sleep.
- Extreme difficult sleeping.
- Drowsiness in monotonous tasks not focused on the act of sleeping.
- Mental hyperactivity causing sleep difficulties and preventing the relaxation necessary for sleep.
Also called misperception of sleep or false perception of sleep state, "hipnoagnosia" or "pseudoinsomnio." The main characteristic of this condition is, that the complaints refering the patients, do not objectively reflect polysomnographic studies. The subjective experience of patients, referring to suffer lack or shortage of sleep is not objectively quantified through polysomnographic diagnostic testing. It represents approximately 5% of cases of consulted insomnia and the prevalence is higher in women, although the paucity of epidemiological studies makes it impossible to know its real extent.
This type of insomnia begins in childhood (childhood or adolescence) and files a chronic inability to fall asleep, without any apparent cause or without no medical or psychiatric conditions, that can justify it. Although starts in childhood, the inability to obtain adequate sleep is continued throughout life. Symptomatic manifestations include poor concentration, lack of motivation, aggression and cognitive problems and performance. It is diagnosed as idiopathic chronic insomnia of unknown cause, that extends over time without any currently known effective treatment. There is often hereditary.