Hoping to catch 40 winks on the way to the snow? Best not to do it reclined in the back of the car as you're driven to the ski fields.
Two teenagers were found fast asleep in the back of a BMW when the car they were travelling in was stopped by Southern Tablelands Highway Patrol in Jindabyne at 2pm on Tuesday.
Rugged up in blankets and down jackets, they looked like they had settled in the for long haul.
But neither was wearing a seatbelt and police issued a number of infringement notices.
During Operation Stay Alert, which targeted motorists across the Queen's Birthday long weekend, police in NSW issued 398 infringements to drivers and passengers for not wearing seatbelts.
Chief Inspector Phil Brooks from NSW Traffic Highway Patrol Command said it was obvious to emergency and volunteer services when they attended crashes which passengers had not worn seatbelts.
"With four fatalities that occurred through the operation, three of those alone in southern NSW, it's quite obvious that some were taking their road use for granted," he said.
Last year, NSW Police issued more than 11,000 fines to drivers and passengers not wearing seatbelts, which have been compulsory since 1971.
Chief Inspector Brooks said police would continue to be deployed to key routes throughout the snow season.
"We work very closely with ACT Highway Patrol to ensure NSW and ACT residents share the road safely throughout the snow season," he said.