Is insomia a sickness

Answer 1

An illness is a sickness. But an illness/sickness is not a condition. And a condition is not a disease.

An illness/sickness is, for one example, most likely caused by a virus or bacteria.

A condition is a term used to describe a state of health which may be constant over time or vary in intensity or frequency. Often, a condition improves with time, but can worsen too (or stay the same). It is not caused by virus, bacteria, or a disease. An example is Arthritis. A condition may benefit from medication, but some conditions do not improve with any specific intervention.

Diseases have a specific cause, are often chronic, but can wax and wane with symptoms improving or deteriorating. An example is Heart disease, Diabetes, kidney disease, COPD, asthma, etc.

So, insomnia falls in the category of a condition. Insomnia can have causes, but it is not an illness or sickness. It is not a disease. For example, blind people often have 24hr insomnia because they have no sensory input visually to establish their circadian rhythm (the 24 hour variations in the sleep-wake cycle).

Answer 2

No, insomnia is NOT a sickness.