Paris Hilton checked in with authorities last night. Her lawyer picked her up at her parents’ home and drove her, along with her mother and sister to the Men’s Central Jail in Los Angeles. She was then transferred to Lynwood where she’s started her 23-day sentence. Hilton does not have a cell mate after all—jail officials decided to give her a two-person cell all to herself. She’ll spend 23 hours per day in there, with one hour per day to shower, use a phone and watch TV.