Scientists in Edinburgh will use a £162,000 grant to explore the potential links between sleeping problems and heart disease.
Edinburgh University researchers hope to help prevent heart disease
Breathing problems during sleep known as "sleep apnoea" can cause high blood pressure, a major risk factor for heart disease.
Experts aim to show whether stiffening of a major blood vessel is associated with sleep apnoea.
The work could save lives by allowing proactive, preventative treatment.
The British Heart Foundation (BHF) has announced the funding as part of a new raft of research grants worth £4.5m to scientists across the UK.
Professor Jeremy Pearson, BHF's associate medical director, said: "This latest round of grants will advance our knowledge further so we can better understand, prevent, diagnose and treat Britain's biggest killer.
"We are delighted that scientists in Edinburgh are helping us in our efforts to beat heart disease."
Dr R L Riha, of the University of Edinburgh, will head the research team.