Hi, Our son Mark Heffernan died in his sleep on jan 21st this year (23yrs). We now believe it was SADS. I discovered 'heart house' by chance on the internet. If you have had an immediate family member 40 yrs or younger who has died as a result of SADS you and your family are entitled to a full screening f.o.c. Myself and my sister Liz are 'walking' in the flora mini marathon on the June weekend for THE Mater FOUNDATION.