Polysomnography

Healthy and sound sleep is the key to good health and mood for the whole day. Our doctors at the K+31 clinic diagnose all sleep-related problems.

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About the service

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Polysomnography is a key diagnostic method relied upon by a somnologist, a specialist in sleep problems. It can help identify disorders such as apnea (stopping breathing), bruxism (teeth grinding), restless legs syndrome and even narcolepsy - a condition when a person suddenly falls asleep during the day.


People often wonder: what is insomnia? It is a common condition characterized by difficulty falling asleep or staying asleep.


Why can’t a person fall asleep even when completely tired? Sleep problems occur for a variety of reasons, including stress, changes in routine, or illness. Sleep disturbance not only worsens mood, but also negatively affects the general condition of the body.

Study
The study must be performed if the following symptoms or conditions are present:
  • Disturbance in falling asleep or frequent awakenings
  • Loud snoring that prevents loved ones from sleeping
  • Frequent nightmares, sleep paralysis
  • Involuntary movements of the limbs or body during sleep
  • Sleep talking and somnambulism (this is more relevant for children)
  • Excessive sleepiness during the day
  • Problems with concentration
  • Suspicion of psychogenic disorders
Why can’t a person fall asleep even when completely tired?

Sleep problems occur for a variety of reasons, including stress, changes in routine, or illness. Sleep disturbance not only worsens mood, but also negatively affects the general condition of the body.


Polysomnography is based on recording various biological signals of the body during sleep, identifying possible deviations from the norm.


If you notice symptoms of insomnia (prolonged wakefulness or regular awakenings at night), it is recommended to consult a doctor: somnography can be the key to restoring quality sleep and your health. After completing the study, the specialist will understand how to treat insomnia and suggest you the best tactics. Depending on the cause of the disorder, both medications and various relaxation and meditation techniques are used.

Why can't a person
Main characteristics of the polysomnography study
  • Where does the procedure take place? Polysomnography is performed both in a medical facility and at home. In the first case, the patient spends the night in a specialized room equipped with everything necessary for sleep control.
  • How do you prepare for the study? Preparing for the study includes following some recommendations. In particular, you should refrain from using cosmetics on the skin, and men should shave the hair at the places where the electrodes are attached. You need to take things to sleep with you (loose pajamas or nightgown, socks, towel, food and water).
  • Are there any contraindications? There are no absolute restrictions for polysomnography. Relative contraindications include acute respiratory diseases with difficulty in nasal breathing and the presence of pustules at the sites where the electrodes are applied.

Polysomnographic research process

On the day of the test, try to eat healthy foods. Eliminate foods and drinks containing caffeine (coffee, tea, energy drinks or chocolate) from your diet. Also avoid drugs that affect the central nervous system: alcohol, sleeping pills and stimulants are prohibited.

Refrain from napping during the day: this is necessary so that you are naturally tired at the time of the study. At approximately 19:00, come to the medical center, where a cozy room awaits you. There you can place your personal belongings and change clothes if necessary.

The nurse will carefully install sensors on you that will record all the key parameters of your sleep: breathing, heart rate and brain activity. Their placement takes about 30-40 minutes.

During your rest, sensors continuously collect information. The medical staff closely monitors your condition, guaranteeing safety and the most comfortable environment: the wires will not restrict your movements.

If you decide to get your results right away, expect them around 11am. The doctor will tell you about your sleep status and, if necessary, provide recommendations.

Decoding sleep: analysis of polysomnography results

Polysomnography provides a detailed sleep map filled with various indicators that help understand what happens to the body during rest. The following indicators are assessed:

1

Electrical activity of the brain. Using electroencephalography, a specialist evaluates the patient's different sleep phases, identifying transitions from one stage to another

2

Heartbeat. Changes in cardiac activity recorded using an ECG, often indicate respiratory arrest

3

Eye movements. REM sleep is easily detected based on specific eye movements recorded on the electrooculogram

4

Muscle activity. Electromyography shows how relaxed or tense muscles are during sleep

5

Record sounds and videos. In particular, conversations in sleep are recorded

6

Body position and leg movements. Some sleep problems are associated with certain postures or involuntary movements

7

Breath. Monitoring airflow and chest movements provides insight into how the patient breathes during sleep

8

Blood flow. Plethysmography allows you to study blood flow in small vessels

9

Blood oxygen saturation. Pulse oximetry measures how efficiently oxygen is delivered to tissues during sleep

After a thorough analysis of all the data, the somnologist draws conclusions about the patient’s condition and makes recommendations for correcting sleep patterns or treatment.

Children's sleep: features of polysomnography in young patients

The study of children's sleep requires a special approach. Polysomnography allows doctors to better understand the dynamics of rest, identify violations and take measures to eliminate them.

Indications for this procedure include:

  • Irregular and restless movements of the limbs during sleep
  • Frequent awakenings
  • Breathing problems
  • Daytime sleepiness
  • Excessive fluid intake before bed

One of the key points of polysomnography in children is to distinguish between normal and pathological snoring. This study also determines the presence of serious breathing problems, which often lead to heart disease (myocarditis, coronary heart disease, angina).

In addition, the test helps identify breathing disorders and heart rhythm problems. For example, in children with certain developmental pathologies (in particular, Down syndrome), the risk of apnea increases. Polysomnography helps to identify it in a timely manner.

The child needs to be prepared for the study. Do not give him caffeinated drinks before the procedure. Dinner should be hearty, but light. Let your child take his favorite toy or book with him - this will help him fall asleep faster and more peacefully in an unfamiliar environment.

Price

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Primary appointment with a neurologist
from 5 460 ₽
Repeated appointment with a neurologist
from 5 460 ₽

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Our doctors

Nodel Marina Romanovna
Experience 32 years
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Nodel
Marina Romanovna
Neurologist, consultant
Tsareva Elena Vyacheslavovna
Experience 18 years
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Tsareva
Elena Vyacheslavovna
Neurologist, somnologist
Tsindeliani Angelina Valeryevna
Experience 29 years
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Tsindeliani
Angelina Valeryevna
Neurologist
Cherepenina Anna Victorovna
Experience 21 year
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Anna Victorovna
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Sitnikova Oksana Yuryevna
Experience 27 years
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Oksana Yuryevna
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Shamalova Nataliya Vladimirovna
Experience 27 years
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Nataliya Vladimirovna
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Huseynova Kamila Timurovna
Experience 15 years
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Kamila Timurovna
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Tatarenko Alena Igorevna
Experience 10 years
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Tatarenko
Alena Igorevna
Leading neurologist, Parkinson specialist, psychiatrist
Mamhegov Eldar Zamirovich
Experience 6 years
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Eldar Zamirovich
Neurologist
Omarova Sabina Magomedovna
Experience 13 years
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Omarova
Sabina Magomedovna
Leading neurologist, parkinsonologist
Chernyakov Alexander Vladimirovich
Experience 32 years
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Chernyakov
Alexander Vladimirovich
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Tikhonov Anton Vladimirovich
Experience 19 years
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Tikhonov
Anton Vladimirovich
Radiologist
Bogdanova Inna Sergeevna
Experience 31 year
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Bogdanova
Inna Sergeevna
Neurologist, otoneurologist, somnologist
Remezova Tatyana Vasilevna
Experience 50 years
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Remezova
Tatyana Vasilevna
Neurologist, pediatric
Mikhailova Natalia Alexandrovna
Experience 21 year
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Mikhailova
Natalia Alexandrovna
Neurologist, otoneurologist
Vazyuro Ekaterina Viktorovna
Experience 8 years
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Vazyuro
Ekaterina Viktorovna
Neurologist
Botasheva Ladifa (Bella) Issaevna
Experience 16 years
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Botasheva
Ladifa (Bella) Issaevna
Inpatient neurologist
Soltakhanova Leila Omarovna
Experience 4 years
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Soltakhanova
Leila Omarovna
Neurologist
Gorshkova Irina Alexandrovna
Experience 6 years
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Gorshkova
Irina Alexandrovna
Neurologist
Akulova Elena Mikhailovna
Experience 31 year
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Akulova
Elena Mikhailovna
Neurologist
Kuvaev Valery Alexandrovich
Experience 13 years
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Kuvaev
Valery Alexandrovich
Neurologist
Patrikeeva Alina Vladimirovna
Experience 26 years
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Patrikeeva
Alina Vladimirovna
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Reviews

An excellent specialist and a pleasant person! Highly recommended.
28.01.2026
B. Irina Grigorievna
I'm glad I visited this doctor and this very beautiful woman. After visiting this doctor, all my worries and anxieties disappeared! Thank you, doctor!!!!
26.01.2026
A. Valery Gennadievich
An excellent, thoughtful doctor, highly professional
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A. Svetlana Vladimirovna
Oksana Yuryevna, you showed me the exercises! Thank you so much!
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A. Valery Veniaminovich
Thank you very much, very useful and informative technique!
14.01.2026
Ch. Sergey Andreevich

About doctor:

Bogdanova Inna Sergeevna

Inna Sergeevna is a very attentive and professional doctor.
11.01.2026
H. Irina Rodionovna

About doctor:

Bogdanova Inna Sergeevna

Received all necessary recommendations and explanations
10.01.2026
I. Andrey Viktorovich
Thank you so much for the appointment! The doctor is polite, helpful, and gives good recommendations.
05.01.2026
P. Alisa Maksimovna
I'm so glad I had an appointment with Oksana Yuryevna. I felt like she was paying attention to my problem. She explained everything in detail, recommended tests, and prescribed treatment. Thank you! 12/30/25
30.12.2025
S. Vera Olegovna
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