updated 01/31/2008 AT 5:00 PM ET
•originally published 01/31/2008 AT 6:00 PM ET
Grey’s Anatomy star Justin Chambers checked into UCLA Medical Center’s psych ward earlier this week, but has checked out.
He “was exhausted and suffers from a sleeping disorder,” his rep tells TMZ.com. “He went in voluntarily to get some help.”
Chambers plays Dr. Alex Karev on the ABC drama.
The UCLA Medical Center is the same facility where Britney Spears is currently under a 72-hour psychiatric hold.