Cremation or Burial

My mother was recently put into hospice and for the first time she’s facing death as a reality. We’ve been discussing burial and her desire, and she has been leaning towards cremation so not to put any financial burden on our family. Something feels wrong to me about that; to me it’s worth a financial stretch to have her buried the traditional way, but I wanted to know if Jewish law is ok with cremation or is there a real reason to prefer burial?