Is there VA help to care for my wife?

I am a veteran with 100% disability and trying to care for my wife who has moderate dementia and wondering if there is any help I can get for my wife from the VA as I have care givers coming in (3) X's a week = 12 hours @ $28.00 per hour. Wife can get all her doctoring, hospital and drugs covered by ChampVA after what medicare pays, so I don't pay for any of this.