Delene Wilson begun decluttering her house last week in an attempt to keep busy during her daughter Lily Laws' radiation treatment for a rare type of brain tumour.

It wasn't until she began reordering her home that she realised her daughter's Macbook was missing, as was a knife block, a Playstation, couch cushions and, bizarrely, toilet paper.

She said the laptop was the biggest blow as it was the only place her daughter had recorded her funeral details, her last wishes and letters to her loved ones.

"This was her way of having a little bit of control over her life when she first came out of hospital." she said.

"She decided to be proactive because she said 'I don't want anyone to have to worry about what I want'."

Lily is just 17-years-old and was diagnosed with RELA fusion-positive anaplastic on April 1.

She received her last shot of radiation therapy this week, before a three-week wait ahead of meeting with specialists in Sydney to see if there's been any change.

Ms Wilson has had to quit her job as a home hairdresser to take care of her and has begun fundraising to get her child to the US for treatment.

She said rewriting the contents of the laptop is impossible for Lily right now.

"She doesn't have the mental capacity to do it again," Ms Wilson said.

Ms Wilson said the theft was reported to Central West Police District police who have conducted fingerprint testing.

She said the fact a toilet window was found open and nothing was taken from the bedrooms makes her think someone entered the house while the family was asleep.