Instead of making drawer systems and such for a flat place to sleep, and also not needing to remove the seats or tons of cargo, i was wondering if anyone has any experience mounting a hook near the rear-view-mirror and another near the rear cargo light and string a hammock? This obviously wouldn't work if you have a cargo barrier, but in essence all you would need to do is fold the middle row seats down and you have a place to sleep without having to unload all your gear. Do you think the roof would be strong enough to support the weight of a fat ass hanging in a hammock? 
