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The research, published in BMC Public Health and in collaboration with Queen Mary University of London and the University of Southampton, used data from the UK Household Longitudinal Study, known as Understanding Society, to analyse the work and sleep patterns of over 25,000 men and women between 2012 and 2017.

They found that compared to people who worked a standard 35-40 hour week, those working 55 hours a week or more had the poorest sleep 鈥� including short sleep (less than seven hours a night) and sleep disturbance (struggling to fall asleep within 30 minutes, waking up in the middle of the night or early morning, and a self-rating of poor-quality sleep).

Meanwhile, those who worked most/all weekends and nonstandard patterns like shifts also experienced sleep disturbance, and either short sleep or long sleep (more than eight hours a night).

Lead author, Dr Gillian Weston (UCL Epidemiology & Public Health), said: 鈥淲hile individual sleep needs vary, adults are generally recommended to aim for at least seven hours of sleep per night. The repercussions of poor sleep extend beyond mere fatigue. Research demonstrates both long and short sleep durations are associated with poor health, emphasising the critical role of balanced sleep in overall well-being.

鈥淚nsufficient sleep and sleep problems are linked with mental and cognitive health issues, chronic diseases, and even work-related injuries. The economic toll of poor sleep is staggering, with productivity losses estimated at over 拢40billion annually in the UK alone.鈥�

Participants involved in the study were asked a series of questions, including about their jobs, hours of work, health and sleep.

The researchers focused on three atypical temporal work patterns: working more or less than the standard 35-40 hours per week, weekend work, and nonstandard schedules (e.g. shifts, early mornings and late evenings).

They also looked at whether there were any gender differences in the associations between atypical work patterns and sleep 鈥� and found that the link between long work hours and short sleep was stronger for women.

Men who worked part-time were more likely to experience longer sleep durations, possible reflecting underlying issues of underemployment and its connections to mental health.

Compared to weekday workers, men were more likely to experience short sleep if they frequently worked weekends, whereas women were more likely to experience short sleep if they worked any weekends.

Dr Weston said: 鈥淲omen who work weekends tend to be concentrated in low-paid service sector jobs, with the poorest work conditions, such as low work autonomy and job satisfaction. This might explain why women are more likely to experience short sleep if they work weekends.鈥�

In addition to gender, the researchers took account of factors, such as age, caring, income, health, job satisfaction, work autonomy and other conditions that could impact an individual鈥檚 sleep patterns.

Dr Weston said: 鈥淥ur findings serve as something of a wake-up call to those responsible for the wellbeing of workers, but also the health of our economy.

鈥淓mployers and policymakers need to ensure that sufficient rest and recovery are a greater priority together with a more careful consideration of the timing and scheduling of work to better support workers鈥� health and productivity.鈥�

The researchers believe that to achieve a sleep-friendly work environment, employers and policymakers could make the following changes:

• Encourage work schedules that align with individuals鈥� chronotypes (i.e. 鈥榣arks鈥� and 鈥榦wls鈥�)
• Provide sufficient breaks
• Minimise overtime culture
• Allow workers to disengage from work outside of their normal working hours

The team also suggest that employees who must work long and irregular hours should be compensated for the negative consequences of these work patterns (ie. With additional paid leave or financial reward). Future research could help determine the compensation required.

Dr Weston said: 鈥淏y acknowledging the impact of atypical temporal work patterns on sleep and taking proactive measures, employers and policymakers can contribute to a healthier, more productive workforce.

鈥淎fter all, a good night鈥檚 sleep is an investment in both individual and collective success.鈥�

The research was funded by grants from the Economic and Social Research Council (ESRC) and the Medical Research Council (MRC).

Links

• Research in听
• Dr Gillian Weston's academic profile
• UCL Institute of Epidemiology & Health Care
• UCL Population Health Sciences

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Poppy Tombs

E: p.tombs听[at] ucl.ac.uk