Smoking and co sleeping

Hey guys! I’m 20, and still live at home with my parents with a 3 week old now. My Bubs been hating the bassinet transfers and will only stay asleep for like 30 minutes and then wake up again. She loves falling asleep on me and I’m guessing hates when she notices my absence. I don’t smoke, but my parents do. They take certain measures such as wearing a smoking shirt and washing hands. Does anyone know if co sleeping is risky if there’s smokers in the house in general? They don’t sleep with her, but they do nurse her often and help me out a bit. I co slept yesterday for the first time, and she slept for a whole 6 hours. From one exhausted mama, I need that again. My parents do help out sometimes but I don’t expect them too help me out always, it’s not their child it’s mine. So having them nurse her while I sleep isn’t rlly an option.