How to read your result
Accumulated shortfall
A growing sleep debt can affect energy, attention, mood, and recovery even when a single night does not seem dramatic on its own.
SelHealth Calculators
Weekly Sleep Shortfall
Review your weekly sleep shortfall with SelHealth and understand how missed sleep may affect energy, focus, and recovery.
How to use this tool
- Enter your usual nightly sleep pattern.
- Review the estimated weekly shortfall.
- Use the result to look for realistic improvements in consistency, bedtime, and recovery habits.
🧠 Mind & Wellness
SelHealth dark calculator system
Sleep Quality Check
Assess sleep cycle efficiency and slow-wave sleep patterns.
Sleep pattern
Educational
Educational Tool
Medically reviewed • Last reviewed: 2026-03 • Source: CDC / AASM-aligned sleep health guidance
• Evidence level: Wellness support / non-diagnostic guidance
Weekly Sleep Shortfall
Estimate your weekly sleep shortfall from average sleep over the last 7 days versus a realistic daily target. Educational only.
Last 7 days
Educational
Educational Tool
Medically reviewed • Last reviewed: 2026-03 • Source: CDC / AASM sleep duration guidance
• Evidence level: Wellness support / non-diagnostic guidance
Perceived Stress Check
A brief perceived-stress scale for recent stress burden. It does not measure cortisol directly.
Recent stress
Screening only
Screening Tool
Medically reviewed • Last reviewed: 2026-03 • Source: PSS-4
• Evidence level: Validated screening instrument
Anxiety Symptom Screen
Validated screening tool for generalized anxiety symptoms over the last 2 weeks.
Screening only
Last 2 weeks
Screening Tool
Medically reviewed • Last reviewed: 2026-03 • Source: GAD-7
• Evidence level: Validated screening instrument
Safety notes:
- GAD-7 screens anxiety symptoms over the last 2 weeks.
Mood Reflection
Validated screening tool for depressive symptom burden over the last 2 weeks.
Screening only
Last 2 weeks
Screening Tool
Medically reviewed • Last reviewed: 2026-03 • Source: PHQ-9
• Evidence level: Validated screening instrument
Safety notes:
- If you endorsed the self-harm item, seek immediate same-day support.
Therapeutic Breathing
Scientifically proven techniques to calm the nervous system and reduce stress.
Guided practice
Lifestyle
4-7-8 Relaxing
In 4 - Hold 7 - Out 8
Box Breathing
In 4 - Hold 4 - Out 4 - Hold 4
Calming Breath
In 4 - Out 6
~
Ready
💚 Benefits of Breathing Exercises:
- Immediate reduction of stress and anxiety via Vagus Nerve activation.
- Improved focus and attention (especially Box Breathing).
- Regulation of heart rate and lowering blood pressure.
- Aiding deep relaxation and falling asleep (4-7-8 technique).
Life Satisfaction
The Satisfaction with Life Scale (SWLS) is a global measure of well-being. Indicate your agreement below.
Reflection tool
Educational
Wellness Estimate
Medically reviewed • Last reviewed: 2026-03 • Source: SWLS
• Evidence level: Validated screening instrument
1. In most ways my life is close to my ideal.
2. The conditions of my life are excellent.
3. I am satisfied with my life.
4. So far I have gotten the important things I want in life.
5. If I could live my life over, I would change almost nothing.
Guided Meditation
Meditation sessions with calming music to reduce stress and increase mindfulness.
Audio support
Lifestyle
05:00
Choose duration & music, then click "Start" 🧘
What this tool helps you do
The Sleep Debt Calculator helps you estimate how much sleep you may be missing across a typical week. It is useful when you want to connect tiredness, focus problems, or recovery issues with your broader sleep pattern rather than one rough night alone.
Frequently asked questions
Can I fully repay sleep debt in one night?
Usually no. Recovery is often better through more consistent sleep across several days rather than one very long night.
Why does weekly sleep debt matter?
Because the body and mind respond to patterns over time, not just to one night in isolation.