Snoring is one of the most common symptoms of sleep apnoea, but what if you snooze solo and no one’s there to hear you sawing wood? Wake up and check your pits: night-time sweating can be a sign of sleep apnoea, according to new research from Iceland.

People with the sleep disorder were three times as likely as healthy people to report heavy perspiration three or more nights a week. One theory: when your airway is obstructed, you work up a sweat just trying to breathe, says study author Dr Thorarinn Gislason. Steaming up your pyjamas? Seek out a sleep lab or consult a GP for a diagnosis and treatment options.

Maybe then you can get your best sleep yet!