Sleep trouble from idling trucks??

My first otr truck was a T-600 with a weedburner. It had a good leak in the back. Always had a headache, but never really realized what was going on until I came home with some clean clothes and started to hang them up after I had been home for a day or two. They smelled like I pulled them straight out of the muffler. My bedding was the same way. I called the shop and told them i wasn't getting back in it until they checked it out. They ended up replacing most of the exhaust system. Everything was good after that.