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The employed and self-employed enjoy much better sleep than those out of work, according to Understanding Society, the world's largest longitudinal household study. Those who are unemployed are over 40% more likely to report difficulty staying asleep than those in employment (having controlled for age and gender differences). However, job satisfaction affects the quality of sleep with 33% of the most dissatisfied employees report poor sleep quality compared to only 18% of the most satisfied.

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