
Yes, you can transport a mattress in a car, but it requires careful planning to ensure safety and avoid damage. The best method depends on your vehicle type and mattress size. For most sedans, a foam or twin mattress can often be folded and fit inside, while larger mattresses (full, queen, king) typically require secure roof-top transportation using a roof rack, ratchet straps, and protective covering. The single most important rule is to secure the mattress so it cannot shift, slide, or lift off the vehicle.
Before you begin, measure your mattress and your car's interior dimensions with all seats folded down. Check your vehicle's owner's manual for weight limits and proper anchor points if using the roof. Never attempt to transport a mattress solely by holding it out of a window or trunk; this is extremely dangerous and illegal in many areas.
Here is a quick guide based on common mattress sizes and vehicle types:
| Mattress Size | Typical Dimensions (inches) | Best Transport Method | Critical Equipment Needed |
|---|---|---|---|
| Twin | 38" x 75" | Interior (folded) or Roof | Moving blankets, rope |
| Full (Double) | 54" x 75" | Roof | Roof rack, ratchet straps, mattress bag |
| Queen | 60" x 80" | Roof | Roof rack, ratchet straps, mattress bag, red flag |
| King | 76" x 80" | Roof (or professional truck) | Heavy-duty roof rack, multiple ratchet straps, mattress bag, red flag |
| Foam/Roll-Up | Varies | Interior (rolled) | Original packaging or durable bag |
For roof transport, cleanliness is key. Wrap the mattress in a plastic mattress bag or old sheets to protect it from road grime. Place it on the roof rack foam-side up to prevent damage. Use ratchet straps (not bungee cords, which can stretch and loosen) to tie it down. Always use a trucker's hitch or cross the straps over the mattress to prevent lifting from wind pressure. Tie a red flag or cloth to the end that extends beyond your vehicle's rear to alert other drivers. Double-check all straps are tight before driving and again after a few miles.
For interior transport, fully fold down the rear seats. If you have a foam or flexible mattress, you can roll it tightly to fit. Slide it in carefully to avoid snagging on door frames or upholstery. Drive slowly and avoid sudden stops, as the mattress can become a projectile in a collision.

I’ve done this a few times with my SUV. Honestly, the roof is your best friend for anything bigger than a twin. Don't even think about using bungee cords—they’re useless for this. You need real ratchet straps. Crank them down until the mattress doesn't budge at all. Throw an old blanket over it first to keep it clean. And for the love of god, tie a bright red shirt or a flag on the back if it hangs over. It seems like a hassle, but it’s way cheaper than a rental truck and it works.

As a frequent mover in an apartment building, I've learned a simple trick for smaller cars. If you have a foam mattress or a twin, you can usually fold it in half. Slide it into the back seat with the ends on the floor and the fold over the seat. Secure it with the seatbelts to keep it from popping open. It’s not perfect, but it’s a solid solution for a short trip across town when you have no other options. Just drive carefully.

Safety is the non-negotiable priority here. A poorly secured mattress is a major road hazard. Beyond straps, you must use your vehicle’s proper tow hooks or roof rack anchor points—not just any part of the car’s frame. The mattress must be centered on the roof to maintain vehicle balance. Before hitting the highway, test your setup by driving slowly around the block and braking firmly in a safe area. Check for any movement. If there's any doubt, stop and re-tie it.

Check the weather forecast first. The last thing you want is to get caught in the rain with an uncovered mattress. A dedicated mattress bag from a hardware store is a cheap investment. When loading, get a friend to help; trying to do it alone is a good way to scratch your car or hurt your back. Plan your route to avoid low-hanging tree branches or drive-thrus. Finally, give yourself extra time for the journey so you can drive at a moderate, safe speed without feeling rushed.


