How to Sleep Sitting Up in a Car: Practical Tips for Safe Rest on the Road

If you’re sleeping in your car because you have nowhere else to go, you’re not alone. Thousands of people across New Zealand and beyond do it every night. It’s not comfortable. It’s not safe. But sometimes, it’s the only option. The goal isn’t to make it glamorous - it’s to make it as safe and restful as possible. Here’s how to sleep sitting up in a car without hurting your body, risking your safety, or drawing unwanted attention.

Choose the Right Spot

Where you park matters more than how you position yourself. Avoid highways, gas stations, or areas with heavy foot traffic. These spots are risky - you’re more likely to be disturbed, reported, or targeted. Look for 24-hour parking lots like those near big-box stores, libraries, or community centers. Many cities have designated overnight parking zones for people in vehicles. In Auckland, places like the Mount Roskill Library parking lot and the Onehunga Community Centre allow overnight stays if you follow basic rules: keep lights off, don’t run the engine, and leave by morning.

Use Google Maps to scout ahead. Zoom in on satellite view. Look for spots with streetlights nearby - they deter crime but don’t shine directly into your windows. Avoid blind spots or alleys. If you can see the road and feel seen by others, you’re safer.

Position Your Body for Comfort

Sitting upright for hours isn’t natural. Your spine isn’t designed for it. But you can reduce strain. Start by reclining your seat as far back as it’ll go - even if it’s not fully flat. Most car seats tilt back 45 to 60 degrees. That’s enough to take pressure off your lower back. Put a rolled-up jacket or towel behind your lower back. This supports your lumbar curve and stops you from slumping forward.

Rest your head. A neck pillow helps, but if you don’t have one, use a folded hoodie or a pillowcase stuffed with clothes. Place it between your head and the window. Don’t let your head loll to the side - that strains your neck. Instead, keep it centered. If your car has a sunroof, cover it with a blanket. Light messes with sleep cycles, even if you’re tired.

Block Out Noise and Light

Even the quietest car isn’t silent. Traffic, dogs barking, wind - it all adds up. Earplugs are cheap and effective. Buy foam ones at any pharmacy. They cost less than $5 and last for weeks. If you can’t sleep with them, try white noise from a phone app. Play rain sounds or static - it masks sudden noises.

For light, use a blackout curtain. You can buy one made for cars online, or make one from a dark towel or blanket. Tape it to the inside of the windshield and side windows with reusable adhesive hooks. Don’t use tape - it leaves residue and can attract attention. Covering even half the window makes a big difference. Your body needs darkness to produce melatonin. Without it, you won’t get real rest.

Stay Warm - Without the Engine

Temperature kills more people than hunger in winter. Sleeping in a car without heat is dangerous. Never run the engine to stay warm - carbon monoxide builds up fast, even with windows cracked. Instead, layer up. Start with thermal underwear. Add fleece. Then a heavy coat. Use a sleeping bag rated for cold weather. Even a cheap one from a discount store can add 10 degrees of warmth.

Put a blanket under you. The cold rises from the seat. A foam pad or folded rug between you and the seat makes a huge difference. If you have a thermal blanket (the shiny kind from emergency kits), put it under your legs. It reflects body heat back. Drink warm water before bed. It helps your core temperature stay steady.

Stay Safe - Always

Lock your doors. Keep your keys in your hand. Never leave valuables visible - phones, wallets, chargers. Put them in a bag under your seat. If you can, keep a small flashlight or phone light nearby in case you need to check something. Don’t sleep with your phone on silent. Set it to vibrate so you hear alerts without noise.

Keep a full water bottle and snacks in the car. Dehydration makes you feel worse. A granola bar or peanut butter packet can keep your energy up if you wake up hungry. If you’re worried about being found, leave a note on your dashboard: “I’m resting. Please don’t disturb. Thank you.” It reduces panic for others - and for you.

What Not to Do

• Don’t sleep with the engine running - carbon monoxide poisoning kills silently.
• Don’t park on uneven ground - your body will shift and wake you up.
• Don’t leave windows fully closed in hot weather - you can overheat.
• Don’t rely on your car’s factory seat for support - it’s not designed for sleep.
• Don’t ignore pain - if your back or neck hurts badly, seek help. Shelters exist.

It’s Not Forever - But It’s Real Right Now

Sleeping in your car isn’t a lifestyle. It’s survival. And it’s temporary. In New Zealand, organizations like Salvation Army, St. Vincent de Paul, and Shelter NZ offer emergency beds, showers, and support services. If you’re able, reach out. You don’t need to be “deserving.” You just need to be alive. These places aren’t perfect. But they’re better than the dark.

Some nights, you’ll sleep better than others. Some mornings, you’ll wake up stiff and tired. That’s normal. But if you keep doing this - if you keep trying to rest - you’re already doing better than you think. You’re not giving up. You’re holding on.