frustrated with my house cats

Michelle
I have 2 grown cats. Both about 8 years old. I love them to death. But my Persian, dear lord is the biggest cry baby. It normally wouldn't bug me, I've lived with it for years, but now I'm stressed at my last trimester, my baby will not get sleep bc my cat will cry his face off for usually attention between the hrs of 3-6am. Every night. What do you guys suggest? Has anyone ever had an issue with needy cats? We also tried sleep training them to sleep outside our room, but the separation anxiety hits them strong. Our house is about 1600 sq feet. Not the largest with tall ceilings and huge open great room and kitchen. His meows echo and he's loud so just kicking him out of our room doesn't help. I'm losing my mind!