A Nampa woman who murdered her mother with a hammer will spend at least 20 years in prison, a judge ruled Friday.

Kelly A. Singh, 41, was sentenced to life in prison with eligibility for parole after 20 years for the Feb. 28 murder of Ruth Ann Collins, 69, at the home they shared on Long Valley Place in north Nampa.

Singh told police she'd been drinking large glasses of wine that day and that her mother had confronted her about her drinking, so she attacked her with a hammer as she slept in her bed. She then went to a neighbor's home and said she thought she'd killed her mother, according to police. The neighbor called police.

Singh pleaded guilty to first-degree murder on Oct. 12. She declined to speak at her sentencing Friday before 3rd District Judge Juneal Kerrick, said Chris Topmiller, Canyon County's chief criminal prosecutor.

Singh has been in custody since shortly after police arrived at her home. She greeted officers at the door but refused to let them in, but they went inside anyway after seeing blood on her clothes and hands, which they said gave them probable cause to investigate.

Police found Collins in her bedroom, alive but suffering from severe head injuries, including a broken eye socket. The right side of her head was split open and her brain was exposed, police said. Collins died at Saint Alphonsus Regional Medical Center in Boise a short while later.

Singh told a judge she was "kind of in a fog right now" when she first appeared in court just after her arrest. She said she was unemployed and had no money.

Singh underwent mental health and substance abuse evaluations before she was sentenced. She remained at the Canyon County Jail Friday night awaiting transport to state prison.