A smoke and vape free environment is one of the simplest ways to help protect your baby's health. Exposure before and after birth can increase the risk of SIDS and other serious health Smoking during your partner's pregnancy Raising Children Network Light smoking' before pregnancy can cause major health problems 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 health problems.