Mother to be sentenced over son's killing

A mother will be sentenced in June after pleading guilty to the manslaughter of her seven-year-old son.

Appearing via video link at the Supreme Court in Sydney on Friday, the woman, who cannot be named, also pleaded guilty to a litany of other charges including assault and the production of child abuse material.

In the months before his death, the boy was forced to wear his soiled underpants on his head and undergo "boot-camp"-style punishment, a court earlier heard.