Lauren Dickason could be freed this decade after murdering her three daughters in Timaru in September 2021.
She's been given three concurrent 18-year sentences today, with no minimum non-parole period.
She'll be eligible for parole in six years.
ZB court reporter Blake Benny says Dickason will begin her sentence in a secure mental health facility.
"There, she'll undergo compulsory treatment - in following that, mental health experts will make that call on whether she's reached the point of actually being mentally well enough to then be transferred to prison."
LISTEN ABOVE

Enda Brady: UK correspondent speaks ahead of Trump appearance at NATO summit
03:54

Hamish McKay: The Country spokesperson on the impacts of the rain in Kaikōura
03:25

The Huddle: Should we be worried about China?
09:29