Relighting a cigar

How long can one leave a cigar in it's dormant state and relight it, to still find a flavorful smoke. Obviously, this varies from smoker to smoker. I know a man who sleeps with a cigar and immediately lights it up again when he awakes. I always think that a cigar that has been out for over three hours, starts to take on the burnt flavors in the remaining tobacco. Letting a cigar rest for a n hour, even two, is completely acceptable. Simply remember to tap off the excess ash prior to relighting. Enjoy.