A standard full-size mattress (about 54 inches wide by 75 inches long) will not lie flat in the Pilot’s cargo area, because the interior width is narrower than the mattress. You might squeeze it in diagonally or transport it in two trips, or opt for a larger vehicle or delivery service.
Understanding the Pilot’s cargo space and the mattress’s dimensions
To judge fit, compare three dimensions: width across the cargo bay, the usable length from tailgate to the back of the front seats, and the interior height. The Pilot’s cargo area is designed for versatility with the rear seats folded, but the narrowest dimension—width between the wheel wells—tends to be the limiting factor for a full mattress. The mattress length (75 inches) is often long enough to fit along the interior length when the rear rows are folded, but the 54-inch width is wider than the available space between the walls.
- Width: The usable space across the cargo floor, especially between the wheel wells, is typically around 41–44 inches—less than the 54-inch width of a full mattress.
- Length: With rear rows folded, the interior length is usually enough to accommodate a 75-inch mattress along the floor, meaning length is not the primary obstacle.
- Height: Floor-to-ceiling height is insufficient to stack or tilt a full mattress much without bending or compressing, which most full mattresses cannot tolerate.
In short, the width constraint is the main hurdle; the mattress will not lie flat without bending, and bending a standard mattress is generally not feasible without damaging it.
Practical loading considerations
Before attempting transport, consider these practical notes based on typical Pilot configurations and common passenger-car habits.
- Folding down both the second and third rows increases available length, but does not change the narrow width between the sidewalls.
- Diagonal loading might technically work in some situations, but stability and protection for both the mattress and interior surfaces are a concern. It’s easy to get stuck or damage interior trim during the process.
- Some foam or “mattress-in-a-box” foams can be more flexible than traditional inner-spring mattresses, but a standard full mattress is usually too rigid to fit diagonally in a Pilot without disassembly of the bed frame.
These factors mean most buyers should not expect a full mattress to fit flat in a 2017 Honda Pilot, even with the rear seats folded, and should plan for alternatives or a different vehicle.
What to do if a full mattress won’t fit
If you’ve confirmed the mattress won’t fit cleanly in one trip, consider these options to avoid a second failed attempt.
- Rent a small moving truck or cargo van for the day to transport the mattress in one go.
- Ask for delivery from the seller or use a local delivery service to move the mattress directly to your home.
- Transport the mattress in two loads if you’re using the Pilot and you don’t have access to a larger vehicle, stacking or temporarily staging items at your destination between trips.
- Consider a different mattress size (for example, a queen can sometimes be easier to manage, depending on width and your vehicle) or use a bed-in-a-box option if space is limited.
These approaches minimize risk of damage to your car or mattress while ensuring you get the item where it needs to go.
Summary
For most owners, a full-size mattress will not lie flat in a 2017 Honda Pilot due to its interior width being narrower than the mattress. Length is typically sufficient when seats are folded, but the width is the bottleneck. Diagonal loading is often impractical, and two trips or a larger vehicle are common alternatives. Always measure your actual cargo space—front-seat position, seat configurations, and any trim differences can affect fit.
Bottom line: plan for two trips, a larger vehicle, or a delivery option rather than attempting to fit a full mattress flat in a 2017 Pilot.