Sleepless nights, screaming babies and a moody wife have got Angelina Jolie's man Brad Pitt tearing his hair out in frustration, according to a new report.

The couple are supposedly experiencing teething problems as new parents - especially Brad, who is said to be wanting to escape from his new responsibilities.

An insider tells In Touch, "Brad has six young kids around him, screaming and having tantrums and keeping him up all night. Sometimes he's so tired, he can barely speak.

"Brad's hoping that once the twins reach four months, then they'll sleep more at night and Angelina will be less moody."

The star told reporters at the festival, "Sleep is something you long for, but it's all right."

Brad & Angelina In Pictures