| Waking night | Sleep-in | |
|---|---|---|
| What the shift is | Awake the whole shift: overnight checks, early meds round, responding through the night | Asleep on the premises as cover; available if needed |
| Typical pay | Hourly rate plus a night premium above the £14.20 day rate | A flat rate per shift set by the provider |
| Minimum-wage treatment | Every hour is working time | Only time actually spent awake for the purposes of working counts (Tomlinson-Blake [2021] UKSC 8) |
| Who usually covers it | Often the senior — the meds qualification is needed through the night | The senior is frequently the named cover and the backup the provider phones |
| The confusion to avoid | — | A sleep-in is not a discounted waking night: they are different legal and pay categories |
Sleep-in, travel and mileage pay
What a sleep-in shift actually is
A sleep-in means the care worker sleeps on the premises — a bedroom in the care home, or the spare room in a supported-living house — as overnight cover. The deal is availability: if a resident needs help in the night, the sleeping worker wakes and deals with it. If nobody needs anything, the worker sleeps.
Seniors end up on sleep-ins more than anyone else for two reasons. First, the meds qualification: many providers want the senior as the overnight cover because a night-time emergency often needs the meds-trained person, not just a waking body. Second, the rota: when the designated sleep-in worker calls in sick, the senior is the one the coordinator phones — it is the on-call responsibility by another name.
Payment is almost always a flat rate per shift — a single figure like £40, £50 or £70 for the night, set by the provider — rather than the hourly rate. That flat rate is the number every dispute starts from.
The law on sleep-ins: Tomlinson-Blake
The question that went to the Supreme Court was whether the whole sleep-in counts as working time for minimum-wage purposes. In Royal Mencap Society v Tomlinson-Blake [2021] UKSC 8, the Court's answer was no: a care worker on a sleep-in shift is not doing 'time work' while asleep. Only time actually spent awake for the purposes of working counts.
In practice that means the flat rate is tested against minimum wage only on the awake hours. A £50 flat rate for a ten-hour sleep-in with half an hour of awake time works out at roughly £100 an hour of working time — comfortably above the National Living Wage of £12.71. The same £50 with three hours awake works out at £16.67 an hour — still above it. The cases that caused the crisis were the ones with long awake periods and low flat rates, where the arithmetic failed.
Seniors should understand the corollary: because the law counts only awake time, there is no legal obligation on the provider to pay the flat rate at or above the National Living Wage across the whole shift. If you are regularly awake for long stretches on sleep-ins — the deteriorating resident, the unsettled house — log every instance. The awake time is the working time, and it is also the evidence.
One thing that has not changed the position: the Employment Rights Act 2025 creates a Fair Pay Agreement mechanism for adult social care, expected around April 2028, which could set sector-wide terms on pay in the future. It does not overturn the Tomlinson-Blake position on sleep-ins.
Waking nights vs sleep-ins: never confuse the two
A waking night is paid for every hour worked, usually at the day rate plus a night premium. A sleep-in is paid at a flat rate per shift, with only awake time counting for minimum wage. They are different legal categories and different pay categories, and comparing them directly misleads in both directions: a £60 sleep-in flat rate looks terrible next to a £130 waking night until you count the eight hours of sleep in the middle.
The senior's position is that providers often need a senior for waking nights specifically — the meds round runs through the night, and the person giving out controlled drugs at 6am has to be the qualified one. That is why waking-night seniors usually command the night premium without argument, while sleep-in rates are the take-it-or-leave-it number on the rota.
When weighing an offer, price the night pattern honestly. A rota with two waking nights a week at a premium is a pay rise; a rota with two sleep-ins a week at £50 a shift is cover paid at cover rates. Both are legitimate — they are just not the same thing, and the comparison table above sets them side by side.
Travel time: what counts and what does not
For domiciliary seniors, the rule is in Regulation 20 of the National Minimum Wage Regulations 2015: time spent travelling between client appointments counts as working time for minimum-wage purposes. The drive from Mrs A's house to Mr B's is working time, full stop.
What does not count is the commute. The journey from home to the first appointment of the day, and from the last appointment back home, are treated as commuting and sit outside the rule — even if the first appointment is an hour away. That distinction is where rotas quietly erode pay: contact time is logged, between-appointment travel is logged if you insist, and the commute is simply not anyone's problem.
The minimum-wage test is done across the pay reference period, not call by call. A provider paying £14.20 an hour for contact time but nothing for travel can still fail the £12.71 National Living Wage test once the unpaid travel hours are added to the denominator. If your rota has you driving forty minutes between calls on your own time, that is the commonest pay dispute in domiciliary care — and the senior, who often covers the patch when it goes short, drives the most of it.
Mileage: the 55p rate and the provider shortfall
HMRC's approved mileage allowance payments for 2026/27 are 55 pence a mile for cars and vans on the first 10,000 business miles in a tax year, and 25 pence a mile after. The 55p rate took effect on 6 April 2026, raised from 45p — the first change since 2011. It is the ceiling on what an employer can reimburse tax-free; it is not what every employer pays.
Many providers pay less — 30p, 35p, sometimes a flat weekly sum that works out worse. The gap is the senior's money funding the provider's rota. A domiciliary senior doing 150 miles a week reimbursed at 30p instead of 55p loses £37.50 a week: nearly £1,950 a year in unreimbursed motoring costs.
Two things soften the blow, neither fully. First, the shortfall between what the provider pays and the 55p/25p approved rates can be claimed as tax relief on the difference — it is a legitimate job expense, claimed through a tax return or a claim to HMRC. Second, some providers pay the full approved rate, and it is worth asking about at interview: mileage policy is one of the fastest ways to tell a good domiciliary employer from a bad one.
Keep a mileage log regardless. Date, start, destination, purpose, miles — a notebook or a phone app, done daily, not reconstructed in April. The log is the basis for the reimbursement, the basis for the tax relief claim, and the evidence if either is disputed.
What to check on your payslip
Seniors' payslips are busier than most, which is exactly why they should be checked. The shift-lead or senior premium should appear as its own line or be baked into a rate you can verify against the offer letter — if the advertised £14.20 has quietly become £13.90 on the payslip, that is a conversation, not a rounding error.
Sleep-ins should appear as flat-rate lines with the dates they cover; waking nights as hours at the night rate. Travel time, where the provider pays for it, should be logged as hours, not absorbed into contact time. Mileage should be a separate reimbursement line — and if it is taxed, something is wrong, because reimbursement up to the approved rates is tax-free.
The habit that protects all of it is a personal log: shifts worked, sleep-ins and awake time, travel between appointments, miles driven. The provider's records are the provider's records. Yours are the ones you can check them against — and the ones a tribunal would ask for.
The Fair Pay Agreement on the horizon
The Employment Rights Act 2025 creates a mechanism for a Fair Pay Agreement in adult social care — sector-wide negotiations on pay and terms, expected to start producing agreements around April 2028. It is the first time social care has had a route to collectively set terms across the whole sector rather than provider by provider.
For seniors, the interest is obvious: sleep-in flat rates, travel-time practice and mileage policies are exactly the kind of terms a sector agreement could standardise. But it is on the horizon, not in the payslip. Until agreements are negotiated and in force, the current law — Tomlinson-Blake on sleep-ins, Regulation 20 on travel time, the 55p/25p mileage rates — is what governs.
None of this is legal advice. If a provider's sleep-in or travel-time practice looks wrong against the rules above, the routes are the same ones employment advisers always give: raise it in writing with the provider first, then ACAS, then a union or employment solicitor. The rules are only useful if they are enforced.
About this guide
Where the figures come from
The sleep-in legal position is from Royal Mencap Society v Tomlinson-Blake [2021] UKSC 8, as summarised in the Department for Business and Trade's minimum-wage guidance: only time actually spent awake for the purposes of working counts as 'time work' for National Minimum Wage purposes. The Employment Rights Act 2025 Fair Pay Agreement mechanism for adult social care is expected around April 2028 and does not overturn that position.
Travel-time rules are from the National Minimum Wage Regulations 2015 (Regulation 20), via GOV.UK: between-appointment travel counts as working time; home-to-first and last-to-home travel is commuting. The National Living Wage of £12.71 an hour applies from 1 April 2026. HMRC's approved mileage rates for 2026/27 — 55p/mile for cars and vans on the first 10,000 business miles, 25p after — are from GOV.UK's tax-relief guidance; the 55p rate took effect on 6 April 2026, the first change since 2011. Flat-rate sleep-in figures and night premiums are typical provider ranges, labelled as such wherever they appear.
Reviewed and updated
Sleep-in law, travel-time rules and mileage rates were last checked against GOV.UK, HMRC and DBT guidance on 24 September 2026. The Fair Pay Agreement timetable is the current government position and may move. This page describes the legal position — it is not legal advice.
Sleep-in, travel and mileage pay FAQs
Is a sleep-in paid at minimum wage?
Only the awake time has to be. The Supreme Court ruled in Royal Mencap Society v Tomlinson-Blake [2021] UKSC 8 that a care worker on a sleep-in shift is not doing 'time work' for minimum-wage purposes while asleep — only time actually spent awake for the purposes of working counts towards the National Living Wage (currently £12.71 an hour).
So a £50 flat rate for a sleep-in with an hour of awake time is fine; the same £50 with five hours awake works out at £10 an hour of working time and fails the test. If you are regularly awake for long stretches on sleep-ins, log every instance — the awake time is the working time.
What is the difference between a sleep-in and a waking night?
A waking night is paid for every hour worked, usually at the day rate plus a night premium — you are awake the whole shift. A sleep-in is paid at a flat rate per shift, and only time spent awake for the purposes of working counts towards minimum wage.
Seniors are often needed for waking nights specifically because the meds round runs through the night. Never treat a sleep-in as a discounted waking night: they are different legal and pay categories, and a rota heavy on one is not the same offer as a rota heavy on the other.
Does travel time count towards minimum wage?
Travel between client appointments does — Regulation 20 of the National Minimum Wage Regulations 2015 counts it as working time. What does not count is the commute: home to the first appointment and the last appointment back home.
The test is done across the pay period: unpaid travel hours added to the denominator can drag an apparently compliant £14.20 contact rate below the £12.71 National Living Wage. It is the commonest pay dispute in domiciliary care, and seniors covering short patches drive the most of it.
What mileage rate can I get for 2026/27?
HMRC's approved rates are 55p a mile for cars and vans on the first 10,000 business miles in the tax year, and 25p a mile after. The 55p rate took effect on 6 April 2026 — raised from 45p, the first change since 2011 — and it is the ceiling on what your employer can reimburse tax-free.
Many providers pay less, and the gap comes out of your pocket: at 30p instead of 55p, a senior driving 150 miles a week loses nearly £1,950 a year. You can claim tax relief on the shortfall between what the provider pays and the approved rates, and you should keep a daily mileage log either way.
Will the Fair Pay Agreement change sleep-in pay?
It could, eventually. The Employment Rights Act 2025 creates a mechanism for a Fair Pay Agreement in adult social care — sector-wide terms negotiated for the whole sector — expected to start producing agreements around April 2028. Sleep-in rates, travel-time practice and mileage are exactly the kind of terms such an agreement could standardise.
But it is not in force yet, and it does not overturn the Tomlinson-Blake position on sleep-ins. Until agreements are negotiated, the current law is what governs your payslip.
Do waking nights pay more than sleep-ins?
Almost always, yes — and the reason is legal as well as practical. A waking night is time work: you are awake and on duty, so every hour is paid at the hourly rate (often with a night premium on top of the £14.20 median), and every hour counts toward the minimum wage. A sleep-in is a flat payment for being on the premises in case you are needed — typically a fixed nightly sum — and the asleep hours do not count as minimum-wage time under the Supreme Court's Mencap ruling.
That is why waking nights are the harder shifts and the better-paid ones: a 10-hour waking night at the median plus premium is a full night's wages, while a sleep-in is a top-up on the day's pay. Seniors cover a disproportionate share of waking nights because the meds qualification has to be present overnight — one more reason the step to senior matters.
Do I have to do sleep-ins as a senior?
Usually, yes, if the contract or the rota requires it — seniors are frequently the named overnight cover because the meds qualification has to be present through the night, and the senior is the first person the coordinator phones when a sleep-in goes uncovered.
What you can insist on is clarity: the flat rate in writing, how awake time is recorded, and what happens when a sleep-in turns into a de facto waking night. The rota relies on seniors for cover; the contract should say what that cover is worth.
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Sources
- ONS — Annual Survey of Hours and Earnings 2025 (provisional). SOC 2020 code 6136 (senior care workers), all employees, pay period including April 2025: median £14.20 per hour, £559.30 per week — the hourly anchor the flat-rate sleep-in comparisons on this page are set against. Accessed 24 September 2026.
- GOV.UK — National Minimum Wage and Living Wage rates. National Living Wage (21+): £12.71 an hour from 1 April 2026 (was £12.21). Travel time between client appointments counts as working time for minimum-wage purposes (Reg 20, NMW Regulations 2015); home-to-first and last-to-home travel is commuting and does not count. Accessed 24 September 2026.
- GOV.UK — Tax relief for employees: vehicles you use for work. HMRC approved mileage allowance payments 2026/27: 55p/mile for cars and vans on the first 10,000 business miles (raised from 45p on 6 April 2026 — first change since 2011), 25p/mile after. Accessed 24 September 2026.
- DBT — Sleep-in shifts in social care (minimum wage blog). Explains Royal Mencap Society v Tomlinson-Blake [2021] UKSC 8: a care worker on a sleep-in shift is not doing "time work" for NMW while asleep; only time actually awake for the purposes of working counts. Accessed 24 September 2026.
These are estimates for guidance only, not financial advice. Figures are taken from the sources listed above and were correct when this page was reviewed. Your actual pay depends on your contract, hours and tax code — check your payslip and HMRC guidance if anything looks off.