To breed dragos, you need to modify the stats of a drago to meet certain requirements. This is a painstaking and slow process, that involves repeatedly farting in the general vicinity of a Drago in a paddock in the hope that it might rub up against an artificial Dragobut or similar aparatus.
Tonight I spent several hours getting an Ebony Female and Indigo Male 'Worked up' and things looked good until this...
For those that don't know, to breed a Drago MUST have:
at least level 5
100% maturity
7500 lovae
middle balance
and 7500 stamina
After working all day i was but 5 units of stamina, when my Indogo male decided to sleep. Breeding will now not happen for at least 18 hours.