Mia Smith, 17 months (right), was put to nap in a car seat by her babysitter in June 2015. But, after she didn't wake up, she was rushed to the hospital where she died two days later. The cause of her death was ruled to be positional asphyxia, which is when a person cannot get enough air to breathe because of the way his or her body is positioned. Babysitter Valerie Wackerly (inset) was charged with involuntary manslaughter and sentenced to three years' probation and to pay restitution to the family. Mia's mother, Lisa, said she now wants to educate people on the dangers of napping in car seats when it is not inside a vehicle.