Sofa Vergara says the pregnancy suit she is wearing for her TV show is "horrible".

The 40-year-old has been spotted showing off a prosthetic baby bump on the set of Modern Family recently, as her character Gloria Delgado-Pritchett is pregnant.

Although Sofa loves playing Gloria, she is finding it a struggle to carry the extra weight around during filming.

"It's horrible," she told Access Hollywood when describing the pregnancy suit. "But it's amazing to have that belly.

"It's really hot, it's really uncomfortable. Yeah, I really feel pregnant, but it helps to get in character, because literally you can't bend."

Sofa has been nominated for a best supporting actress in a comedy series trophy at the Emmy Awards this year.

This is the third time she has been recognised for her performance in Modern Family and the beauty always looks forward to attending the glitzy ceremony.

"For me, it's a fun night. I love dressing up. I love bringing in my family," she explained. "Last year I brought like 14 people with me. This year, we're 18. It's crazy. [It] gets crazier and crazier. Everybody wants to come! So for me, it's a party."