Sleep Study Level 2
(Polysomnography Level 2)
Comprehensive Sleep Studies to Improve Your Sleep Health
Understand your sleep patterns and detect disorders with professional sleep testing.
What is a Sleep Study?
A sleep study (polysomnography) is a diagnostic test used to evaluate sleep patterns, disorders, and physiological functions during sleep. It is typically conducted in a sleep lab or at home, depending on the type and severity of the suspected sleep disorder. Below is a detailed breakdown:
Types of Sleep Studies
1. In-Lab Polysomnography (Level 1)
- Gold standard for diagnosing sleep disorders.
- Conducted in a sleep clinic or hospital.
- Measures:
- Brain waves (EEG)
- Eye movements (EOG)
- Muscle activity (EMG)
- Heart rate (ECG)
- Breathing patterns (nasal airflow, chest/abdominal effort)
- Oxygen levels (pulse oximetry)
- Limb movements
- Snoring and body position
- Used for: Diagnosing sleep apnea, narcolepsy, restless legs syndrome (RLS), parasomnias (e.g., sleepwalking), and insomnia.
2. Home Sleep Apnea Testing (HSAT) (Level 2, 3)
- Portable devices used at home to primarily assess obstructive sleep apnea (OSA).
- Levels:
- Level 2: Measures 7+ parameters (similar to in-lab, but less comprehensive).
- Level 3: Limited-channel devices (e.g., airflow, oxygen, effort, heart rate).
- Advantages: Convenient, lower cost.
Types of Sleep Studies
- Diagnose sleep apnea (obstructive or central).
- Evaluate insomnia or unexplained daytime sleepiness.
- Detect parasomnias (e.g., night terrors, REM sleep behavior disorder).
- Assess narcolepsy or hypersomnia.
- Monitor treatment efficacy (e.g., CPAP for sleep apnea).