A Brooklyn man who murdered his quadriplegic girlfriend and left their 2-year-old son in their Williamsburg apartment with her body for 16 hours was sentenced to the maximum 25 years to life Thursday — as his victim’s family cried over how the child still calls out for his mommy.

Angelo Sanchez, 42, pleaded guilty to suffocating Melissa Torres, 32, and leaving her in the shower.

“The baby to this day thinks his mother is still sleeping,” Torres’ mother, Norma Santiago, sobbed in Brooklyn Supreme Court as she gave her victim impact statement.

“He says he’s going to see her and runs around the house crying, ‘I want to see Mommy. I want to see Mommy!’ He’s a sweet angel.”

Prosecutors said Elijaah Sanchez, now 3, was found wearing a soiled diaper in the bathroom next to his mother’s body and near a safe his dad had smashed open looking for cash.

“He was screaming for help, putting toys back and forth in the broken safe,” Assistant District Attorney Josh Charlton said.

Torres’ sister, Norma Soto, also noted the murder’s toll on the family.

“How do we explain to my nephew in the future that his father killed his mother?” Soto said.

Sanchez had admitted to the August 2013 murder in a handwritten confession, describing how he smothered Torres with a blanket after she got mad at him for getting high — and how he let Elijaah see his slain mom.

“The baby woke up and came to the bathroom and tried to sit on his mother’s lap. I picked him up, the baby was asking if his mother was sleeping,” Sanchez wrote.

“I gave the baby Rice Crispies for breakfast, he kept asking to wake his mother up, and started crying.”

Judge Matthew D’Emic blasted Sanchez, who has a long criminal history.

“The night of the murder, he said he was stressed out because he never had any time to himself, so he went out and got high on angel dust,” he said.

Recounting the crime, D’Emic added, “As an act of cruelty, it doesn’t get much worse than that.”

Defense attorney Martin Marshak argued Sanchez was in a druggy haze.

“He cared for her for over 15 years,” Marshak insisted — to which one of a dozen relatives watching said, “Yeah, he cared for her while he killed her.”

Sanchez tried to appear contrite.

“I don’t want to get out of jail. Whatever you give me, my life is over,” he said.

Santiago is in the process of adopting Elijaah.