-LRB- CNN -RRB- -- The mother of Lisa Irwin , an 11-month old Missouri girl missing for nearly two weeks , said in an interview she was drunk the night the infant disappeared . Deborah Bradley made the admission during an NBC interview , portions of which were aired Monday on `` Today . '' She also said she last saw Lisa at 6:40 p.m. October 3 , when she put the girl to bed , not at 10:30 p.m. , as initially believed . Lisa was reported missing at 4 a.m. October 4 , after Lisa 's father , Jeremy Irwin , came home from work to find the door unlocked , lights on and a window that had been tampered with at the family 's Kansas City home . Bradley told NBC she is afraid she will be arrested . Police have accused her of killing Lisa , she said , and told her that she failed a lie detector test , with deception indicated when she was asked where Lisa was . `` I was the last one with her , '' a tearful Bradley said in the interview . `` And from judging on how the questioning went , that 's kind of a fear that I have . And the main fear with that is , if they arrest me , people are going to stop looking for her . And then I 'll never see her again , and I 'll never know what happened . '' Asked how much she had been drinking that night , Bradley said , `` enough to be drunk . '' But she rejected the notion that she could have harmed her daughter while under the influence of alcohol . `` No , no , no , '' she told NBC . `` And if I thought there was a chance , I 'd say it . No . No . I do n't think alcohol changes a person enough to do something like that . '' She said it 's `` terrible '' that police may be focusing on her . `` My daughter is missing , '' she said . `` The last thing that I want to have to worry about is something like that . I should n't have to put any energy , any time or effort , into anything but finding her . '' Asked whether he had questions about Bradley , Irwin told NBC , `` No . There 's no question to be had there . I know who she is . I know the kind of mother she is . '' He said it 's possible someone could have entered the house without Bradley hearing , as the couple 's bedroom is on the opposite corner of the house from Lisa 's room and Bradley sleeps with a fan at high speed . Police have said three cell phones were also missing from the home along with Lisa . On Sunday , Missouri Gov. Jay Nixon ordered the one-day deployment of 25 National Guardsmen to help search for Lisa . Two anonymous benefactors have offered a $ 100,000 reward for Lisa 's safe return , according to Bill Stanton , a private investigator working with the family . Irwin and Bradley told NBC they have refused to let authorities re-interview Lisa 's older brothers . `` They said they heard noises -LRB- the night Lisa disappeared -RRB- , '' Bradley said . `` I do n't know if that was before we went to sleep or after . '' She said she has not talked to her sons about it because she is reluctant to put them through `` anything else . '' Asked what she would say to someone who might be holding Lisa , Bradley told NBC , `` She needs her family , and we need her . We 're losing more sanity as each day progresses . '' Lisa is described as being 30 inches tall with blue eyes and blond hair , according to police . She weighs between 26 and 30 pounds and was last seen wearing purple shorts and a purple shirt with white kittens on it . The missing girl has two bottom teeth and a `` beauty mark '' on her right outer thigh , police said . At the time of her disappearance , she had a cold with a cough .