Xtina Lets Herself Go With the Dogs

3/26/2007 1:30 PM PDT BY TMZ STAFF
When it's time to go, and you're Christina Aguilera, and you're still in bed, well, just take the bed with you.

The "Back to Basics" chanteuse exited her Manhattan hotel yesterday after a long night before -- a big Madison Square Garden concert followed by a splashy after-party at Marquee. And she apparently had just enough time before the car whisked her away to grab her dogs, throw on a hairnet -- and don a pair of very large sunglasses.

Aguilera has repeatedly reference her and husband Jordan Bratman's penchant for "Naked Sundays" -- not so, yesterday.