Chiles originally received a life sentence without the possibility of parole, but last year the State Court of Criminal Appeals modified her sentence to 30 years.
Under the state's 85 percent rule, she must serve about 25 years before becoming eligible for parole, most likely getting credit for time spent in custody since May 2007.
In 2005, Jeannie Henderson was convicted of second-degree manslaughter after her 8-month-old son Christian Marten burned to death while she slept on a nearby couch.
Prosecutors contended that Henderson, deprived of sleep during a weekend methamphetamine binge, “crashed” and couldn't hear her baby screaming or crying after his walker became stuck on a furnace grate and he burned to death.
Henderson stood trial for second-degree murder, but a jury found her guilty of second-degree manslaughter and possession of a controlled drug in the presence of children younger than 12. A judge ordered her to serve two four-year sentences for both felonies and said at the time that anyone who suspects drug crimes are victimless crimes “ought to have to take a look at the picture of your son, who died on that floor furnace.”
Henderson was released on parole in May 2008.