On-call rosters and late releases run on borrowed sleep.
Largely daytime office work; fatigue comes from on-call rosters, incident call-outs and cross-time-zone meetings. The safety consequence is low; the cost is errors, productivity and burnout.
IT managed services and 24/7 operations centres (also see Telecommunications)
IT services and consulting
Software and SaaS companies
Reg Watch
What’s changed, and what’s coming
Regulatory change that affects how you manage fatigue in technology & software: what has changed in the last 12 months, and what is on the way.
Recent changeFrom 6 April 2026
Applies across industries in the United Kingdom
In Great Britain, from 6 Apr 2026 sick pay is due from the first day of sickness and you must keep holiday records for 6 years; from 1 Oct 2026 most tribunal claims can be brought up to 6 months after the event.
Upcoming changeExpected from 30 October 2026Within 12 months
From October 2026 (expected 30 Oct) you must take all reasonable steps to prevent sexual harassment of staff, including by customers and other third parties. From 1 Jan 2027 unfair dismissal protection starts after 6 months' service. Guaranteed hours and shift-notice rights for zero-hours workers are listed for 2027, timing to follow consultation.
Regulatory changes checked as at 1 October 2026.
Regulation
Who regulates it, and what they expect
There is no UK right to switch off and no tech-specific fatigue or hours rule. Your obligations are the general ones: a 48-hour average week under the Working Time Regulations, commonly opted out of by salaried technical staff, an 11-hour daily rest, a weekly rest period, the 20-minute break, night-work limits for overnight rotations, and a duty to manage fatigue as a foreseeable risk. On-call and out-of-hours work is not separately regulated, so where paging and after-hours contact genuinely eat into daily or weekly rest, those rest entitlements are the provisions that bite - and they are enforceable by the worker in a tribunal.
Regulated by
HSE
Logos identify the regulator and don’t imply endorsement.
Who regulates it
There's no dedicated regulator for fatigue or working hours in the UK tech sector - the same general safety regulator, employment tribunals and courts that apply to every UK employer apply here too. The one thing worth watching is a proposed 'right to switch off' after hours, which the government floated as part of a big recent package of employment law reforms.
Your obligations
You must manage fatigue as a foreseeable risk under the Health and Safety at Work Act. HSE is explicit that complying with the Working Time Regulations alone does not meet that duty, and that it applies whatever an individual's willingness to work extra hours. The Working Time Regulations require an 11-hour uninterrupted rest in each 24 hours, a weekly rest period, and a 20-minute break on shifts over six hours; an individual opt-out removes only the 48-hour average. Those entitlements constrain on-call and after-hours contact even though no right-to-disconnect law exists. Night-work limits apply to overnight rotations.
Consequences
No employee can bring a standalone right-to-switch-off claim, because the UK has no such right. What they can bring is a Working Time Regulations claim in the employment tribunal, within three months of each breach, where on-call demands or after-hours paging actually curtailed the 11-hour daily rest, the weekly rest period or the 20-minute break - and the employer's duty is to arrange work so those breaks can be taken, not merely to grant them on request. HSE can prosecute under the Health and Safety at Work Act, with fines set by turnover and no ceiling in the Crown Court, and can enforce the 48-hour and night-work limits as criminal offences. Discrimination awards are uncapped.
Penalties
Fines follow the Sentencing Council's 2016 guideline, scaled to turnover: micro up to £2m, small £2m-£10m, medium £10m-£50m, large £50m and over, where the worst cases start at £4m in a £2.6m-£10m range, higher for very large firms. Crown Court fines are unlimited and individuals face up to 2 years' imprisonment. HSE charges £188 an hour. Exceeding the 48-hour limit is a criminal offence, denied rest breaks are tribunal claims, and discrimination awards are uncapped.
On the record
No UK court, coroner, investigator or regulator has published a finding linking fatigue to an incident in the technology sector. The duty to manage fatigue still sits within the general duties of the Health and Safety at Work etc. Act 1974.
Sources: Employment Rights Act 2025 (contents confirming no right-to-switch-off provision); Acas guidance on the Act; Working Time Regulations 1998; Health and Safety at Work etc. Act 1974 and HSE fatigue guidance; Equality Act 2010; Sentencing Council guideline (2016); HSE charging rates.
Fatigue-critical roles
Where fatigue matters most in technology & software
The roles where a fatigued worker is most likely to cause serious harm, the tasks that carry the risk, and why fatigue builds up in them.
Role
Risk
High-risk tasks
Why fatigue builds
Data centre critical facilities shift engineer (HV Authorised Person)Rules
Regulatory designation
Night worker (WTR 1998 reg 2: 3+ h of daily work in night time as a normal course) - free health assessment, reg 7; electrical competence duty (Electricity at Work Regulations 1989 reg 16)
Hours and rest
WTR 1998: night work avg 8 h in 24 (reg 6); 48 h avg (opt-out allowed); 11 h daily rest (reg 10)
High risk
HV/LV switching and isolations, generator and UPS transfers, battery-room work, fault response at 03:00 where an error causes electrocution, arc flash or site-wide outage
24/7 12 h rotating shifts (e.g. 4-on-4-off days and nights), lone night cover at smaller sites, call-outs
Field service engineerRules
Regulatory designation
None specific - general duty (HSWA 1974 s 2; MHSWR 1999 reg 3)
Hours and rest
WTR 1998: 48 h avg (opt-out allowed), 11 h daily rest (reg 10), 20 min break over 6 h (reg 12)
High risk
Driving to 4 h SLA call-outs for ATMs, POS, network and server hardware; overnight install windows; lifting and ladder work at customer sites
On-call overnight SLA response, long regional drives, night change windows followed by day work
Site reliability engineer (SRE) / on-call engineerRules
Regulatory designation
None specific - general duty (HSWA 1974 s 2; MHSWR 1999 reg 3); night worker (WTR reg 2) only if night work is a normal course - standby usually is not
Hours and rest
WTR 1998: 48 h avg (opt-out allowed), 11 h daily rest (reg 10), 20 min break over 6 h (reg 12)
Elevated risk
Responding to overnight production incidents, database failovers and rollbacks, cyber-incident triage; time-pressured changes that can cause major outages or data loss
1-in-4 to 1-in-8 weekly on-call with night pages, follow-the-sun gaps, release windows outside business hours
How the suite fits
How each product connects to your obligations
Grades describe how strongly a product connects to an obligation. None discharges an obligation, and none carries a compliance warranty.
Sleepfit
Supports your general duty of care
No UK rule names a sleep screen for software development. Sleepfit supports your regulation 3 risk assessment under the Management of Health and Safety at Work Regulations 1999 where poor sleep is a foreseeable risk. It screens; diagnosis stays with your clinicians.
Awareness eLearning supports the training you must give under s 2(2)(c) of the Health and Safety at Work etc. Act 1974 and regulation 13 of the 1999 Management Regulations with fatigue and sleep content. No UK rule names fatigue training for software development.
RIDDOR 2013 requires you to report and record specified incidents in software development but names no cause, and no fatigue review is required. Was It Fatigue? supports your own investigation. A structured judgement aid, not a determination of cause.
No UK rule reaches sleep in new-parent households in software development. SleepWellBaby supports your working parents through the most disrupted period of their own sleep; it is offered as a wellbeing benefit, not a compliance step.
Fatiguefit4Duty is built for safety-sensitive roles at the point of duty. Technology and software roles are generally not safety-sensitive and no UK rule requires a fitness-for-duty check, so nothing is engaged.
Your software teams hold no safety-sensitive roles, so your duty is HSWA 1974 s 2 and a reg 3 risk assessment. Sleepfit screens; Awareness eLearning supplies content with a completion record; SleepWellBaby is an employee benefit. Family is the lighter option.
See what sleep and fatigue mean for your technology & software workforce.
Tell us roughly how many people you employ. Your snapshot models how many are likely sleeping poorly and what it costs, from published research for technology & software. Then choose who you’d cover, and we’ll take you to the right next step.