Wearables

Hours slept

Hours slept is the total time you spend asleep each night,captured via wearable tracking or sleep logs, and used to assess recoveryrather than a blood test. Hours slept indicates whether sleep duration supportscognitive function and metabolic regulation. Low Hours slept is commonly linkedto insomnia, stress, shift work, alcohol use, pain and obstructive sleep apnoearisk in the appropriate clinical context. Habitually high Hours slept can occurwith sleep debt, illness or poor sleep quality. Because sleep duration affectsglucose control and cardiovascular health, suboptimal patterns can contributeto fatigue, reduced concentration and slower exercise recovery. Hours slept isbest interpreted alongside sleep efficiency, REM sleep, deep sleep N3 and overnightheart rate (or HRV).

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What is Hours Slept?

Hours slept measures the total time you spend asleep each night, expressed in hours and minutes. It helps assess how effectively your body rests and recovers over time.

Why does it matter for long-term health and wellbeing?

Adequate sleep supports cognitive clarity, emotional balance, and metabolic function. Over time, consistent quality rest helps maintain energy, focus, and overall vitality.

What’s an optimal level of Hours Slept?

The optimal range is 7–9 hours per night (100%), which represents excellent recovery and wellbeing.

Typical time-bound reference levels:

  • 20% (Pay attention): Less than 5 hours
  • 40% (Sub-optimal): More than 9 hours
  • 60% (Fair): 5–6 hours
  • 80% (Great): 6–7 hours
  • 100% (Excellent): 7–9 hours

What influences Hours Slept levels?

Factors include daily routines, stress, light exposure, caffeine or alcohol intake, exercise timing, and bedroom environment. Consistency and relaxation before bed also play major roles.

What does it mean if Hours Slept is outside the optimal range?

Regularly sleeping less than 6 hours or more than 9 hours may suggest that your lifestyle or recovery habits need adjusting. It’s a cue to evaluate how your daily choices affect rest quality.

How can I support healthy Hours Slept levels?

  • Keep a consistent bedtime and wake-up time.
  • Limit screen use before bed.
  • Avoid caffeine and alcohol close to bedtime.
  • Create a cool, dark, and quiet sleep environment.
  • Build relaxation into your nightly routine.

This information is provided for general health and wellness purposes only and does not replace medical advice.

References

  1. Banks, S., & Dinges, D. F. (2007). Behavioral and physiological consequences of sleep restriction. Journal of Clinical Sleep Medicine, 3(5), 519–528.
  2. Hirshkowitz, M., Whiton, K., Albert, S. M., et al. (2015). National Sleep Foundation’s sleep time duration recommendations: methodology and results summary. Sleep Health.
  3. Australian Institute of Health and Welfare (AIHW). (2021). Insufficient sleep
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Red Blood Cell (RBC) Count
Haemoglobin
Haematocrit
Mean Cell Volume (MCV)
Mean Cell Haemoglobin (MCH)
Mean Cell Haemoglobin Concentration (MCHC)
Red Cell Distribution Width (RDW)
Platelet Count
8 markers

Blood health

Key blood indicators like hemoglobin, inflammation, and oxygen transport for overall health.
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HDL Cholesterol
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Heart health

Assesses cardiovascular health through cholesterol, lipids, and heart-related risk markers.
Cortisol
Dehydroepiandrosterone Sulfate (DHEA-S)
Free Thyroxine (T4)
Free Triiodothyronine (T3)
Thyroid stimulating hormone (TSH)
5 markers

Hormone balance

Evaluates hormone levels that impact energy, sleep, mood, and metabolism.
White Blood Cell (WBC) Count
Neutrophils
Lymphocytes
Monocytes
Eosinophils
Basophils
6 markers

Immune system

Measures immune activity and inflammatory responses to assess body defenses.
High-Sensitivity C-Reactive Protein (hs-CRP)
1 marker

Inflammation status

Tracks signs of chronic or acute inflammation that may affect long-term disease risk.
Bicarbonate
Chloride
Creatinine
Potassium
Sodium
Urea
Uric acid
Anion Gap
Estimated Glomerular Filtration Rate (EGFR)
9 markers

Kidney function

Assesses kidney health through creatinine and other markers of blood filtration.
Alanine Aminotransferase
Albumin
Alkaline Phosphatase
Aspartate aminotransferase (AST)
Bilirubin
Gamma-glutamyl Transferase (GGT)
Globulin
Total Protein
8 markers

Liver health

Measures liver enzymes and proteins responsible for detoxification and metabolic health.
Fasting Glucose
Fasting Insulin
Haemoglobin A1c (HbA1c) IFCC mmol/m
Haemoglobin A1c (HbA1c) NGSP/DCCT %
HOMA-IR score
5 markers

Metabolic health

Evaluates energy processing with glucose, HbA1c, insulin, and related biomarkers.
Magnesium
1 marker

Vitamins & minerals

Analyzes essential nutrients that support immunity, energy, and overall wellbeing.
Creatine Kinase
1 marker

Muscle strength

Assesses biomarkers related to muscle performance, function, and recovery.
Biological Age
1 marker

Biological age

A reflection of how your body is aging at the cellular level, linked to age risks and longevity.
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