Test of Sleep: Analyze Your Melatonin and Circadian Rhythm

• Identifies if melatonin imbalance is the cause of insomnia or non-restorative sleep.
• Helps resynchronize the biological clock with appropriate medical guidelines.
• Positive impact on your metabolic and inflammatory health.

To perform the Sleep Study test, you can consult the step-by-step instructions.
Sample collection is done at the patient's home, who must deliver them to the laboratory the following morning.
The sample must be taken before brushing teeth and 30 minutes after consuming solid or liquid foods.
Complete the questionnaires provided by the center.

Your results, clear and accessible:
Within 14 business days, we will send you a notification by email and SMS.
With that notification, you will be able to access and download your results from our online Patient Portal.
Once you have your report, consult a healthcare professional so they can interpret it with you and, if necessary, create a personalized action plan.

Melatonin is known as the "darkness hormone." Your body naturally produces it when there is no light to signal that it's time to sleep. Measuring its levels at different points during the night allows us to see if your production follows the correct rhythm: if it starts to rise at the right time, if it reaches a sufficient peak to maintain sleep, and if it decreases in the morning so you wake up energized.

This test does not diagnose sleep apnea, which is a respiratory disorder. However, poor rest caused by apnea can disrupt your hormonal rhythms, including melatonin and cortisol. If you suspect you have apnea (loud snoring, pauses in breathing, extreme daytime sleepiness), you should consult a sleep specialist. This melatonin test can be a useful complement to assess your overall circadian rhythm.

Chronodisruption is simply a mismatch of your internal biological clock. It occurs when your lifestyle goes against your natural rhythms. The most common symptoms are: difficulty sleeping at night, daytime sleepiness, constant fatigue, mood swings, and sugar cravings. If you work shifts, travel frequently (jet lag), or use screens late at night, it is very likely that your rhythm is disrupted.

Yes, and very significantly. The blue light emitted by screens (mobile phones, tablets, computers, televisions) tricks your brain into thinking it is still daytime. This inhibits the production of melatonin and delays the signal that it is time to sleep, making it harder to fall asleep and worsening its quality.

It can be part of the solution, but it is not always the only answer. Low levels may indicate that you need to adjust your habits (such as exposing yourself more to natural light in the morning and reducing artificial light at night). The results of this test will provide your doctor with the necessary information to decide if a melatonin supplement is suitable for you, at what dose, and when to take it to resynchronize your biological clock.

Although both use saliva, they measure different pieces of the puzzle of your well-being. The Stress Test focuses on the stress axis (cortisol and DHEA) throughout the day to assess your level of fatigue and exhaustion. The Sleep Test focuses on melatonin during the night to specifically analyze your circadian rhythm and the quality of your rest. They often complement each other, as high cortisol at night can inhibit melatonin and cause insomnia.