Doctors should not be expected to work more than three nights in a row, and should be given time for power naps overnight, to reduce fatigue, says a UK anaesthetist who started campaigning after a trainee was killed in a car accident following a nightshift.

Speaking at a medical conference on Monday, Dr Nancy Redfern called on medical regulators to address the negative impact of sleep deprivation on doctors’ and patients’ safety.

“Those working shifts must ensure everyone gets a power nap, and that we support each other to remain safe and vigilant when we work through the night,” Dr Redfern said.

“Staffing schedules should allow sufficient time between shifts for proper rest, and no-one should do more than three night shifts in a row.