The South Surrey mother who smothered her young daughter to death has filed an appeal of her second-degree murder conviction, as well as of the sentence that was imposed for the crime.

Lisa Batstone鈥檚 appeal application was confirmed to Peace Arch News Wednesday by BC Prosecution Service spokesman Dan McLaughlin. Dates have not yet been set for the appeal hearing.

The court heard during trial that Batstone suffocated eight-year-old Teagan with a plastic bag in December 2014, while the girl slept.

In her reasons for the verdict, Justice Catherine Murray found the murder to be deliberate, purposeful and goal-driven.

Batstone鈥檚 conviction came with an automatic life sentence.

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Earlier this month, Batstone learned that she will have to wait 15 years to apply for release from custody.

Batstone was arrested after the body of Teagan was found in the back of a car in a cul-de-sac off Crescent Road.

Defence counsel had argued that the mother鈥檚 level of intoxication at the time she killed Teagan 鈥� along with borderline personality traits, significant levels of depression and a 鈥渃loud of stressors鈥� 鈥� may have limited her ability to gauge the consequences of her actions.

In court, Murray said she was 鈥渘ot convinced鈥� that Batstone鈥檚 mental health was the reason for the murder, rather, 鈥淭eagan was the pawn in her mother鈥檚 revenge鈥� against Teagan鈥檚 father, Gabe Batstone, for the collapse of their marriage.