The land of nod: exhausted Aussies sleeping on the job

Fifteen per cent of workers have admitted to taking a sneaky nap at work, according to a survey. (Lukas Coch/AAP PHOTOS)

Australians are so exhausted they've become less productive at work, chucking sickies or having a surreptitious nap on the job, according to new sleep data.

Fifteen per cent of workers have admitted to taking a sneaky nap at work, while 30 per cent of shift workers say they have fallen asleep on the job, according to a survey for private health insurer HIF.