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Hypertension is one of the most common chronic non-communicable diseases in the world. Risk factors, methods of prevention and treatment of hypertension have been sufficiently studied. However scientists are still looking for pathogenetic mechanisms of its development. At the same time, 36.9% of patients with hypertension had different sleep disorders. Patients with insomnia have a 21% higher risk of developing hypertension compared with those who have quality sleep. Hypnotics are given up to 15% of patients with hypertension. Hypnotics have been shown to increase the risk of cardiovascular events. As much as 44.1% of patients with established diseases of the cardiovascular system have problems with the quality or duration of sleep. At this time, hypertension and sleep disorders are considered mutually aggravating diseases.

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Insomnia is a risk factor for the development of arterial hypertension, obesity, type 2 diabetes mellitus, cardiac rhythm disorders, and myocardial infarction. At the same time, insomnia is one of the most frequent non-cardiac complaints in patients with cardiovascular diseases. The aim of the work was to study the presence of possible relationships between insomnia and the level of blood lipids. Materials and methods. A cross-sectional study involving 118 patients was conducted. Criteria for inclusion in the study were age over 45 years, the presence of essential hypertension. All patients included the study underwent sampling of 7 ml of venous blood in the morning under fasting conditions. The content of total cholesterol (TCS), triglycerides (TG), high-density lipoprotein cholesterol (HDL CS) was determined by enzymatic method on a biochemical analyser Humalyzer 2000. The patient was interviewed by a pre-trained study doctor.  Results. In the article a relationship between total cholesterol, low-density lipoprotein cholesterol and the presence of insomnia has been established and proved by statistical model. The overall statistical model accuracy is 89.6 % and statistical significance p < 0.005. Accuracy of insomnia prediction is 85.7 % by level of total cholesterol (TCS) and patient interview data. Only one model with best accuracy exists and it was estimated at the article. Conclusions. Relationship between total cholesterol, low-density lipoprotein cholesterol and the presence of insomnia has been established and proved by statistical model. Accuracy of insomnia prediction is 85.7 % by level of total cholesterol (TCS) and patient interview data.

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