If You're wondering whether a mattress will fit inside of the Toyota Highlander, I can help You with that. The largeSTSized mattress that You can fit on this vehicle with the seats folded down is a twin sized mattress. If You are looking to fit a mattress bigger than that, it is going to be a tough one because the vehicle is not wide enough to take the mattress without damaging it. If You do want to fit a bigger size, I would probably recommend trying the mattress to the top of the vehicle. That would be Your best bet.
Anderson E
December 8, 2020
The largest mattress that will fit in a Toyota Highlander is a twin sized mattress which has the dimensions of 38 in by 75 inches.
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