The sentencing was announced Monday evening.
Cherie Amoore, 33, was charged in April 2016 with kidnapping of a minor, unlawful restraint, false imprisonment, interference with the custody of a child, concealment of the whereabouts of a child and other related charges.
The baby, Ahsir Simmons, was found safe a few hours after the abduction.
According to police documents, Amoore told detectives she gave birth to a boy on February 11, 2016, but the baby only lived a few hours, and she never told anyone the child had died.
She then allegedly told police, "I don't know why I did it. I can't explain it. I held him, and all those feelings rushed back. I just wanted my baby. I felt like I was holding my son again. It felt so good. I didn't want to lose that feeling. I was crazy. I never intended to do anything like this."
VIDEO: Police: Suspected mall baby kidnapper claimed pregnancy
Police say Amoore had approached the family at the mall on March 31, 2016, and began talking with the mother, asking how old the baby was. During the course of the conversation, Amoore allegedly said she had a baby about the same age.
Amoore followed them around while engaging in small talk, went to stores with them, followed them to the food court, and sat at their table, according to the affidavit.
When the mother arrived after getting food, police say Amoore was still at the table.
According to the affidavit, Amoore asked the mother if she could hold the baby, but was told "no." While the mom was helping other children, police say the baby began to cry and Amoore took him from his stroller and began to console him.
The mom told police she was distracted by the other children and, when her back was turned, Amoore ran off with the baby. She started to chase after Amoore, but lost sight of her when she turned to check on her other son, who was still at the table.
VIDEO: Cherie Amoore arrives to court
Two people sitting nearby pointed out which direction Amoore went, police say, but by then she was gone.
Chopper 6 was overhead as police searched cars at the mall.
VIDEO: KOP kidnapping
Investigators say, after the kidnapping, Amoore took little Ahsir to show him to relatives.
However, once news of the abduction emerged and surveillance video of the abductor was released, police say family members recognized her and notified police.
Meanwhile, police reviewed video showing Amoore talking to another woman shortly before the abduction. That woman also helped police identify the suspect.
Those tips brought police to a home above a barber shop in Tredyffrin Township, Chester County, where Ahsir was found safe and Amoore was taken into custody.
Police say when she answered the door, Amoore said "I took the baby and I am sorry." The baby was asleep in a car seat belonging to Amoore, police say.
"She has told our investigators that she did not go to the mall with intention to steal a baby," said Chief Tom Nolan.
"I just got up and walked away," Amoore is quoted as saying in the police affidavit. "I remember walking, it was like an out of body experience."
Action News was there as baby Ahsir was reunited with his family at the Upper Merion police station.
PHOTOS: Family reunited with kidnapped baby
His mother, Malika Hunter, said, "I would like to thank God for allowing my baby to come back. And, I want to thank the Upper Merion Police Department, and everybody on social media that helped me get my baby back. I want to thank you so much."
VIDEO: Mother of kidnapped baby speaks out
VIDEO: Kidnapping folo