According to TMZ, the Two And A Half Men star will serve 30 days (though really more like 15) in an Aspen prison for attacking wife Brooke Mueller with a knife last Christmas.
It was reported earlier that Sheen was deciding between the jail term or two years’ probation—and it looks like Sheen decided to take his prison lumps than risk a more severe sentence if he got in trouble again. Knowing Sheen's history, the odds of him screwing up again were pretty good.
Source: TMZ