Is it illegal to sleep in your car? is a question that many travelers and late-night workers find themselves asking. The legality of car sleeping varies significantly depending on where you are. In some states, like California, it’s generally allowed as long as you're not parked illegally or trespassing on private property. However, many cities have ordinances that prohibit sleeping in vehicles to discourage homelessness, particularly in urban areas like Los Angeles and New York. Rest stops along highways typically permit short-term parking for rest, but some impose strict time limits. Always check local laws before you decide to snooze in your car to avoid fines or other legal issues.