Will a full size mattress fit in a jeep wrangler?

Yes, You should be able to fit a full size mattress in a Jeep Wrangler. Generally speaking, most medium to large sized SUVs should be able to fit a full sized mattress. Apart from the bed itself, the Jeep Wrangler has a ton of storage space, despite it being somewhat compact for an SUV. This makes it an excellent vehicle for long trips and carrying lots of equipment, as it can be one of the more comfortable vehicles to actually sleep in. Even the 2-door Wrangler, which is a slightly smaller model, offers a cargo space within which You can build Your own bed. This also fits a full size mattress, as do the Wrangler JK, JL and Rubicon models.