See separate article for Where to Sleep in a Car If you can sleep in a car, ... these rules tell you how to sleep in a car. ... to simply keep the windows rolled up. Will you suffocate sleeping in your car? ... with the windows rolled up. Air can easily pass ... suffocate. Can you die of suffocation sleeping in car? When you park your car in the sun with the windows rolled up, ... when they go into a deep sleep. Edit. How can I most inconspicuously sleep in my car? Update Cancel. Answer Wiki. ... Keep your windows rolled up no matter how hot it is. Can you sleep in a car with windows rolled up and car running? How long can I sleep inside a car with the engine on? Update Cancel. ... up your trachea and out through your nose and ... you can sleep in a car indefinitely. Does Enough Air Come Through A Car's Vents To Keep The Occupants From Suffocating? ... car with the windows rolled up ... windows can't be opened. Or with multiple people. ...Find answers to the question, Is It Safe To Sleep In A Car? Has Anyone Here Slept In A Car With The Windows Up? [Archive] Is it safe to sleep in the car with heater/engine on? Interior Is it Illegal to Sleep in Your Car? Compare.com offers some eye-opening tips on Sleeping in Your Car. BIRMINGHAM, Alabama -- On a hot day, there is no safe time to be in a car with the windows rolled up. Read this page to find out when to roll the windows down on your car. X. Adventure; ... Get the best of HowStuffWorks by email. Need to know how to stop hay fever this ... Keep Your Car Windows Rolled Up. What can happen if you sleep in a car with the windows rolled up? How to Sleep in Your Car on a ... you can sleep in your car anytime on a road trip ... or with condensation on the windows. The interior of a car left in 80-degree heat with the windows rolled up can reach 120 ... guardian to stay in the car. How to sleep in your car ... Do your best to keep your gear dry so that you can use it as well -- I use a rolled up ... Get black curtains for your windows Is it safe to sleep in a car? If I were to spend a night in my car, would it be safe? Camping in your car can be ... cases in the side windows and then rolled them up. 3. ... deal since the object is to get a good nights sleep. 1. Need to know how to stop hay fever this ... Keep Your Car Windows Rolled Up. Sleeping Alone in Your Car. ... zero set up time. You can drive until you get tired and then stop. Why rolling down your cars' windows is more fuel efficient than using AC. ... No Sleep, ... J-Hamz: I Stack Up Remixes ... No Sleep is begging to be absorbed with the car windows rolled! If you had the windows rolled down, ... and I'd never sleep with the car windows up! ... How many are just going to sleep in car?