Prolonged N3 Sleep C5873014
N3 sleep, or deep slow-wave sleep, is important for physical restoration. Excessive N3 sleep may indicate underlying sleep disorders and can cause grogginess upon waking.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Sleep drunkenness
Difficulty waking
(neurologic)Generalized symptoms
(neurologic)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Confusion upon awakening
(neurologic)Excessive sleep duration
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Dietary counseling and physical activity plan
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Sleep schedule regularization
Implementation of consistent sleep and wake times, including weekend schedules within 1 hour of weekday patterns, to stabilize circadian rhythm and normalize deep sleep duration.
Regular physical activity program
Moderate aerobic exercise and strength training routines scheduled earlier in the day to enhance sleep pressure and improve deep sleep quality through physiological mechanisms.
Additional treatment options
Sleep environment temperature management
Bedroom temperature optimization to cooler range of 65-68°F (18-20°C) and breathable bedding to prevent overheating, which can suppress deep sleep stages.
lifestyleNutritional assessment and modification
Evaluation of dietary intake for sleep-affecting nutrients including magnesium, zinc, and tryptophan; consider timing of meals and potential dietary triggers affecting sleep quality.
dietaryUnderlying condition screening
Medical evaluation to rule out conditions causing excessive daytime sleepiness that may be mistaken for prolonged deep sleep, including thyroid disorders and sleep apnea.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Prolonged N3 Sleep C5873014?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Berry RB, Brooks R, Gamaldo CE, et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications. J Clin Sleep Med. 2020.
Reid KJ, Baker PC, Duran R. Slow wave sleep: A sleep physiologist's perspective. Sleep Med Clin. 2021.
Bombo D, Wassing R, Hemmeter U. Slow wave sleep alterations in psychiatric disorders: A meta-analysis. Sleep Med Rev. 2019.
Kryger MH, Roth T, Dement WC. Principles and Practice of Sleep Medicine. 7th ed. Philadelphia: Elsevier; 2022.
Medication Comparisons
Compare medications used to treat Prolonged N3 Sleep C5873014. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy