You snooze, you lose — your car!

An elderly New Jersey woman claimed she was catching some z’s in her car this week and woke up lying in her driveway — with her ride nowhere to be found, according to a new report.

The unidentified 80-year-old woman, of Fairlawn Avenue in Hamilton Township, told local police that she’d fallen asleep in her car, parked in her driveway, around 9 p.m. Wednesday, ABC 6 reported.

She doesn’t remember what happened after that, but when she woke up around 4 a.m. Thursday, her car was gone, she told authorities.

“[Officers] located an 80-year-old female victim who awoke on the ground in her driveway and her car had been taken,” Lt. Mark Horan of the Hamilton Township police told the local station.

The woman had no clue how she got there or who took her car, but woke up with a cut and bruise on her face — for which she declined medical attention.

“She did not recall any incident other than her car that she was previously sitting in being missing,” Horan said.

Her car was later found about 15 minutes away in Trenton, but no one was arrested, authorities told the station.

Cops are investigating the incident as a possible carjacking.

“We’re fortunate that the victim wasn’t injured more seriously,” Horan said.