Sleep Deprivation Test
Understand whether lack of sleep may be affecting your focus, mood, and alertness in about 10 minutes. Get a clear snapshot from 65 items plus practical, nonmedical tips to recover and sleep better.
08:30
Scale Explorer
How the Scales are Structured
DATA-BASED USER COHORTS
Who Usually Takes This Test?
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking
See How You Compare
Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Below is a preview of how scores are typically distributed across each scale.
Cognitive & Attention Lapses (C&AL)
Cognitive & Attention Lapses (C&AL)
Average
21.5
Normal range
17 — 26
min.
0
max.
30
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Fatigue Severity (FS)
Fatigue Severity (FS)
Average
14.6
Normal range
9.1 — 20.1
min.
0
max.
40
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Mood & Irritability Impact (M&II)
Mood & Irritability Impact (M&II)
Average
6.4
Normal range
3.1 — 9.7
min.
0
max.
20
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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SAMPLE QUESTIONS
Example Questions From the Test
- Never
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- Never
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- Almost always
- Never
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WHAT THE TEST MEASURES
About This Assessment
Sleep Deprivation Test - Symptoms and Signs
Wondering if you’re sleep-deprived? This Sleep Deprivation Self-Check helps you reflect on common signs like daytime sleepiness, trouble focusing, mood changes, microsleeps, and reliance on caffeine. Answer quick questions about your recent sleep schedule, alertness, and daily functioning to get a simple snapshot of your current fatigue level plus practical, non-medical tips for recovery and sleep hygiene. This is for informational purposes only and isn’t a diagnosis—seek professional advice if symptoms are severe or persistent.
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