The woman is again arrested with restrictions and must undergo a forensic psychiatric examination - a so-called Section 7 examination - in which her mental state is to be investigated.
The new date for the prosecutor to file a prosecution or request an extension and remand is April 14.
It was on January 30 this year that a three-year-old girl was found dead after more than a day in an apartment in Norrköping. The girl's parents were arrested and then arrested on suspicion of grossly abusive death.
On Sunday, February 16, the father was found dead in the jail for unclear cause, a case that is under investigation by the Prison and Police.
The mother has always denied crime. The forensic examinations of the girl and the father are not yet complete.
Read all about the case of the three-year-old girl.