Demi Lovato Spends Christmas Day with her Family (Out of Rehab)

Demi Lovato wasn't allowed to leave rehab last month for Thanksgiving, but Christmas was another story. 

The Sonny With a Chance star was granted permission to leave Timberline Knolls, the Illinois treatment center she checked into in November for "emotional and physical issues," to spend Christmas day with her mother, step-father and two sisters. 

"She was allowed to leave for 1/2 day on Christmas Eve and then a full day on Christmas," a source tells She returned to rehab in the evening on both days.

While no one has reported when Demi's stint in rehab will end, a source close to the actress tells that the Disney star is expected to leave rehab by February.