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Brooke Mueller, the 32 year-old wife of Charlie Sheen, has been checked into the intensive care unit at a Sherman Oaks, Calif. hospital, TMZ reports.

RELATED: Sheen and Mueller try to save their marriage

This news comes on the heels of Wednesday's cancellation of an Aspen, Colo. court hearing for Mueller and Sheen. The couple had planned to ask a judge to lift a restraining order preventing them from being in contact with one another. Mueller's attorneys asked to move the hearing to Friday in order for Mueller to recuperate from surgery related to an "oral infection."

According to AP reports, Attorney Yale Galanter said Wednesday that Brooke Sheen was running a fever of 105 degrees when she was taken to Sherman Oaks Hospital. He says the fever came from an infection she developed after oral surgery.

RELATED: Everything you want to know about Sheen

Sheen, 44, was arrested on Dec. 25 for allegedly assaulting his wife; in an affidavit, Mueller said that Sheen threatened to kill her, and brandished a knife.

RELATED: Check out Mueller's Christmas 911 call

The couple welcomed twin boys Max and Bob in March 2009.

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