updated 10/17/2011 AT 6:00 AM ET
•originally published 10/17/2011 AT 6:30 AM ET
On the night her 10-month-old daughter disappeared, Lisa Irwin’s mother drank enough wine at home while relaxing with a neighbor that she has no recollection of whether or not she checked on her daughter or turned off the house lights before she went to bed.
Did the alcohol cause her to black out? “It’s a possibility,” Deborah Bradley tells Fox News Channel.
On Sunday, 25 members of the Missouri National Guard scoured areas searched previously by police and FBI agents for clues regarding the whereabouts of Baby Lisa, whom her mother says was snatched from her crib in the hours prior to 4 a.m. Oct. 4.
That’s when Lisa’s father, Bradley’s fiancé Jeremy Irwin, returned home from a late work shift to find a front window open, the front door unlocked, several inside lights on and their daughter missing.
Police have named no suspects while continuing to scour woods, landfills and abandoned houses near the family’s north Kansas City, Mo., home.
‘Several Glasses of Wine’
With Irwin, an electrician, working late on the after-hours remodel of a Starbucks, Bradley settled down at home for dinner and drinking with a neighbor, Bradley says.
She put Lisa down in her room around 6:40 p.m., she says. Only once more soon afterward did she check on Lisa, finding her standing in her crib before tucking her back in.
Then, as the other children of the two next-door-neighbor moms watched a movie inside, Bradley tapped the box of wine that she’d bought earlier that evening, and she and her friend spent much of the evening chatting outside on the front stoop.
“I had several glasses of wine,” Bradley tells Fox. More than five? “Probably.” Asked if she was concerned she might be drunk with her infant daughter inside, Bradley replied, “She was sleeping. I don’t have a problem with me having adult time.”
Her friend left for home about 10:30 p.m., and later told Bradley that she saw the lights in the house go dark. But Bradley herself can’t say if she turned off those lights, or whether they may have been flipped on by an intruder whom she believes entered her home through the open front window and took her child.
“I firmly do not believe that somebody took my baby to hurt her,” says Bradley in a separate interview with PEOPLE. “They really wanted that baby. That’s the hope that keeps me going. She’s still alive somewhere.”
She adds: “People are going to think what they think. Those people that are out there judging me, please, just look for her.”