Riley, a 6-pound, 7-ounce girl, was born at 5:43 a.m., the Palm Beach Post reported.
Sanchez, Riley and her mom reunited Friday in Belle Glade.
Stern was house-sitting for a friend in Palm Beach Gardens when she went into labor after taking a shower. She was able to call 911.
“He was a big help,” Stern said of Sanchez. “I couldn’t have done it [without him].”
The statement from police noted that both mom and her baby are doing well, and that Sanchez has “recovered, as well.”