Clark Sleeping baby safety tip: Keep baby's environment smoke and vape free. Secondhand smoke in areas where a baby sleeps or spends time, like home or the car, increases the risk of Tobacco smoking and vaping in pregnancy and neonatal outcomes: results from a UK cohort study Second hand smoke poses significant risks not only to adults but also to unborn babies. Eliminating exposure to second hand smoke during pregnancy is essential for the health of both mother and child, as Vaping and Smoking While Pregnant: Risks, Effects and More