A British family is struggling to deal with the tragic death of their "perfect daughter" who died in her sleep of a rare condition she didn't realise she had.
Charlotte Mayes was thought to be perfectly healthy, didn't smoke or take drugs and drank very little alcohol, Britain's Daily Mail newspaper reported.
Her brother found her on the couch at home in front of the television.
He called emergency services but they could not save her life.
Miss Mayes was later found to have been suffering from a rare heart condition called hypertrophic cardiomyopathy, the Daily Mail reported.
The disease causes a thickening of the heart muscle forcing it to work harder to pump blood.
An inquest into Miss Mayes' death was told she had travelled to Turkey for a few months with her best friend Nikita Lee after completing a childcare diploma course.
Her mother, Michelle Roberts, said Charlotte had become lethargic despite appearing completely health.
"She had been really, really tired, so she slept lots. I did tell her to go to the doctors, but she didn't. As soon as she came home, she would sleep on the sofa," she said.
"We hadn't seen her - Charlotte was due back three days after we left for Egypt. She was still in Turkey and had been there since June. She went away with her friend Nikita. She did say about her sleeping lots, especially near the end of the holiday."
Dr Trisha Wahie, who carried out the post-mortem examination, sad it was possible she had died peacefully in her sleep.
Family members have been scanned for heart abnormalities, but they have had no irregular results.