Research
Mixed
Mood is the most sensitive measure of sleep deprivation, showing greater impairment than cognitive or motor performance, particularly under partial sleep deprivation conditions.
Monitor your mood closely when sleep-deprived. Mood deteriorates more severely than physical or cognitive output, serving as an early warning sign of sleep debt.
StrongSupportsHIGH confidence
we found that mood is more affected by sleep deprivation than either cognitive or motor performance
Why this rating
Meta-analysis provides robust quantitative evidence for the hierarchy of effects.
Source
Effects of Sleep Deprivation on Performance: A Meta-Analysis
June J. Pilcher et al. · SLEEP · 1996
Meta-analysis · 19 studiesCited 1,545×
Read the paper This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →