"Modern Family" actress Sofia Vergara is reportedly going nuts over her wedding preparations to a point where Joe Manganiello's fiancee has allegedly become into a complete nightmare.

In a report by Radar Online, the "Modern Family" actress is allegedly driving Joe Manganiello crazy as the wedding nears because the two are very hands on when it comes to the details of their nuptials.

"Joe is so on edge lately and is telling his friends that this wedding is driving him absolutely nuts," an insider told. "Joe loves Sofia very much, but says that she is turning into a complete nightmare and he cannot wait until this wedding is over."

Despite having wedding planner Mindy Weiss, the two can't seem to decide on certain details, which made the "Magic Mike" actor feel so stressed.

For one, they reportedly can't decide on their choice of alcohol as Joe Manganiello's friends are all sober while Sofia Vergara's side are fond of booze.

The "Modern Family" actress, meanwhile, pleaded guilty to being a nightmare when it comes to details stating that she is a person with a very good memory.

"I am very detail-oriented so I am kind of like a nightmare," Sofia Vergara said to US Magazine. "I have a very good memory. If you show me swatches of things, I can in two months exactly remember, 'What happened with the one with the little border that had the little print?' I'm like, really bad."

Meanwhile, the 43-year-old Colombian actress has revealed that her wedding gown designer is the Beirut-born Zuhair Murad. The brunette beauty is set to rock a custom-made gown for the ceremony.

Sofia Vergara and "Magic Mike" actor Joe Manganiello are set to tie the knot at posh The Breakers Palm Beach Resort in South Florida on November 22.