He was visited by sisters Kelly and Stacey, who told pals they wanted to take him a cake with a confectionary file on top as a joke – but were told food items are banned.
They instead ordered a small cake from the secure hospital’s shop and washed it down with tea.
They also sang “Happy birthday” to the four-time killer on the two-hour visit to Ashworth Hospital, Merseyside.
“They also brought him a load of clothes – designer T-shirts and boxer shorts”
“They also brought him a load of clothes – designer T-shirts and boxer shorts. They were left at reception to be taken to him after they had been checked.
“Stacey and Kelly sang to him and he looked a little embarrassed.”
Earlier in the week, Kelly posted a message on Instagram with a photo of shaven-headed Cregan that read: “Wishing the best brother that anybody could ask for in the whole wide world a happy birthday.
“Hoping one day there will be a miracle and you’ll be back where you belong love and miss ya long time day day xxxxxxx”
But Cregan – who she calls by his pet name Day Day – will never be freed.
Cregan was staying at the house while on the run for murdering David Short, 46, and his son Mark, 23, in a pub in Droylsden.
He then calmly walked into a police station to confess to the brutal crimes.
Visitors to Ashworth are allowed to hug and kiss patients on arrival and departure.
Holding hands is also permitted under the hospital regime.
Bags are not allowed to be brought into the visiting room and everyone is given a metal detector scan and body rub-down by a same-sex employee.