Can you sleep in your car in a Walmart parking lot?
Generally, yes, you can sleep in your car at Walmart.
Walmart does not have a corporate-wide policy of allowing people to sleep in their car in their parking lots..
Can you sleep anywhere in your car?
Several states allow overnight parking at rest stops, but the majority do not. Luckily, according to Lawyers Plus, it is still generally acceptable to sleep in your car if you’re not actively driving, trespassing or inebriated (you could be charged with DUI even if you’re sleeping and the car is parked).
Is it safe to sleep in a car with the windows closed?
Sleeping in your car with the windows closed is generally safe, though external factors can make it hazardous. Vehicles aren’t airtight, and a mid-size car holds 3,000-4,000 liters of air, so oxygen-deprivation is not a concern. What will affect your safety is having the engine on and the location of the vehicle.
Is it dangerous to sleep in your car?
Sleeping crunched up or on uneven seats can create conditions that are poor for your blood circulation. Do not leave the car running or leave the key in the “on” position overnight to use the climate control. You risk breathing in harmful car emissions, running out of gas, or killing the car battery.