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.
Hi! My name is Freudly, i am an AI therapist, I will give you an interpretation of the test after you complete it.
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.
RESULTS YOU CAN ACTUALLY USE
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)
Average
21.5
Normal range
17 — 26
min.
0
max.
30
Majority
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)
Average
14.6
Normal range
9.1 — 20.1
min.
0
max.
40
Majority
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)
Average
6.4
Normal range
3.1 — 9.7
min.
0
max.
20
Majority
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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CLEAR ANSWERS TO COMMON QUESTIONS
Frequently Asked Questions
What does this questionnaire measure?
It screens for common indicators of insufficient sleep and fatigue, including daytime sleepiness, reduced attention, mood changes, microsleeps, and caffeine reliance. Results provide a brief snapshot based on recent sleep patterns and daytime functioning.
How long does it take and how many items are included?
Completion time is about 10 minutes. The questionnaire includes 65 items.
Is the result a medical diagnosis?
No; it is for informational use only and does not diagnose a sleep disorder or other condition. Seek professional evaluation if symptoms are severe, sudden, safety-related, or persistent.
What time period should be used when answering?
Use the most recent one to two weeks unless an item specifies a different time frame. Answer based on typical days during that period, not an unusually good or bad day.
How should results be used after completion?
Use the summary to identify areas that may benefit from improved sleep duration, schedule consistency, and reduced sleep disruption. If the score suggests high fatigue, avoid driving or hazardous tasks when sleepy and prioritize recovery sleep.
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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