Millions of UK night workers remain the forgotten workforce despite growing health risks, report warns 

For much of the past decade, workplace wellbeing has been shaped around the needs of office-based employees. Flexible working, hybrid policies, digital wellbeing platforms and mental health initiatives have become increasingly common across organisations seeking to improve workforce health. 

But for the millions of people who keep hospitals running, deliver goods overnight, manufacture products, protect communities and maintain critical infrastructure while the rest of the country sleeps, many of those conversations have barely begun. 

A new report from sleep and fatigue specialist Night Club argues that employers need to rethink how they support the UK’s growing night-time workforce, warning that night workers remain one of the most overlooked groups in workplace health despite facing significantly greater risks to both their physical and mental wellbeing. 

According to the report, around 8.7 million people in the UK regularly work evenings, nights or rotating shifts, representing almost a quarter of the workforce. Yet many workplace health strategies continue to be designed around the traditional nine-to-five employee, leaving organisations exposed to avoidable health, safety and productivity challenges. 

The report suggests this is becoming an increasingly important issue as employers place greater emphasis on prevention and workforce health. 

The hidden cost of working against the body clock 

Shift work has long been recognised as an operational necessity across sectors including healthcare, emergency services, logistics, manufacturing, retail and transport. 

However, Night Club argues the health implications are often underestimated. Working through the night disrupts the body’s natural circadian rhythm, making quality sleep more difficult and increasing fatigue. Over time, this can affect concentration, decision-making, mood and physical health. 

The report estimates that insufficient sleep costs the UK economy more than £50 billion every year, with approximately £20 billion attributed specifically to night workers through reduced productivity, sickness absence and wider health impacts. 

Fatigue also presents a significant safety challenge. 

According to the report, workplace accidents are estimated to be between 25 and 30 per cent higher during night shifts, while employees working when naturally fatigued are more likely to make errors, particularly in safety-critical roles. 

For employers, these findings reinforce that sleep should not be viewed purely as a personal lifestyle issue but as an important component of occupational health and organisational performance. 

An overlooked wellbeing challenge 

While awareness of mental health, menopause, financial wellbeing and musculoskeletal health has grown rapidly in recent years, sleep has often remained on the margins of workplace wellbeing strategies. 

The report argues that change is needed. Rather than treating fatigue as an inevitable consequence of shift work, organisations should view sleep health as something that can be actively supported through better shift design, education, recovery opportunities and workplace culture. 

Importantly, the report suggests the issue extends beyond physical health. 

Persistent fatigue has been linked with reduced resilience, poorer mental wellbeing, lower engagement and increased burnout, all of which have become priorities for employers seeking to improve workforce performance. 

For employees working permanent or rotating night shifts, those risks are amplified. 

Supporting the workforce employers rarely see 

The report also highlights a broader challenge facing many organisations. Much of the investment in workplace wellbeing over the past decade has focused on employees with regular access to offices, managers and digital communications. 

Night workers, by contrast, often work when occupational health teams, HR professionals and senior leaders are absent. This can leave them feeling disconnected from workplace initiatives and excluded from health and wellbeing programmes that are delivered primarily during standard business hours. 

As organisations continue investing in employee experience, the report argues there is an opportunity to design more inclusive approaches that recognise the realities of 24-hour operations. 

That includes ensuring wellbeing support is accessible outside office hours, adapting communications for shift patterns and recognising that recovery is just as important as productivity. 

Prevention rather than reaction 

The report reflects a wider shift taking place across workplace health. Increasingly, employers are moving towards preventing illness, rather than simply responding to it. That means considering how work itself affects employee health, from workload and leadership through to working hours, recovery and sleep. 

Night Club argues that employers should adopt practical measures, such as fatigue risk management, sleep education, healthier shift scheduling and workplace environments that support rest where appropriate. 

Rather than seeing these initiatives as additional wellbeing benefits, the report positions them as investments in workforce resilience, safety and long-term organisational performance. 

A changing conversation about workforce health 

For workplace wellbeing professionals, the report raises an important question. As organisations become increasingly sophisticated in their approach to employee health, are they designing strategies that genuinely reflect the diversity of today’s workforce? 

Millions of employees work outside traditional office hours every day, yet their health needs often receive significantly less attention than those of their daytime colleagues. 

The report suggests closing that gap will require employers to move beyond a one-size-fits-all approach to wellbeing and recognise that workforce health looks different depending on when, where and how people work. 

As the conversation around prevention continues to evolve, supporting the UK’s night workforce may become one of the next major frontiers in workplace wellbeing. 

Rather than viewing night work simply as an operational necessity, employers have an opportunity to recognise it as a distinct workforce health challenge; one that, if addressed effectively, could improve safety, productivity, retention and the wellbeing of millions of employees who keep the UK running while the rest of the workforce sleeps.