A preliminary alcohol test found that Bean had a blood alcohol level of .190.
She was said to have drank at least six shots of tequila with a friend and then had a 'pull of tequila' around 6.30am.
The woman was then said to have attempted breast feeding her child but fell asleep.
She woke to the baby stuck between her breast and arm with blood coming from his nose.
'It's sad,' said Lenor Lopez, the boy's paternal grandmother, who only got to hold him when he was born and the day before he died.
She added: 'He was so precious. He was a beautiful baby.'
The mother and her baby had been at her home.
'She was just saying how tired she was and the baby was a lot of work and whatever,' Lopez said. 'I offered, I said I'll help you take care of him, but since she breast feed I couldn't do nothing.'
Bean has been stopped by Lincoln Police for driving under the influence, since the death of her baby.
She was given a $15,000 percentage bond on the condition of not drinking alcohol.
Prosecutors asked for the bond to be raised as Bean turned herself in with a BAC of .09.
'I am not here to judge Ashley. I said there is somebody up higher that will judge her and that knows the truth,' Lopez said.