A woman from Birmingham has had an appeal against her conviction for murder thrown out.
Emma Bates, 31, was jailed for life and ordered to serve a minimum of 15 years in November 2009 for murdering her boyfriend Wayne Hill.
Mr Hill, aged 30, died from a single stab wound during an incident at an address in Tideswell Road, Great Barr.
Lawyers argued Bates's conviction was unsafe but Court of Appeal judges said there was nothing wrong with it.
Jerry Hayes, representing Bates, said two jurors had fallen asleep during parts of the trial, including the defence closing speech and the judge's summing up.
He also said "hearsay" evidence had been used in her trial and should have been made inadmissible.
Lord Justice Gross said the hearsay evidence had been needed to establish Bates had expressed a willingness to kill.
He also said there was no need for further investigation into the jury's conduct as the judge had kept them informed and involved throughout the case.
Mr Hill died in April 2009.