The court had heard how Mills bombarded his partner with texts and warned "I will burn your house down".
Kimberley, born 13 weeks premature, was at home for the first time after being discharged from hospital on the day of the fire.
Homeless Mills, the baby's father, was living in a tent in the front garden but had been banned from seeing the child unsupervised.
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Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Sunny and bright spells for most of us this afternoon, feeling pleasantly warm.
North Wales Fire and Rescue Service say incidents of deliberate fires are more common during the school holidays.