Jamie-Lynn Sigler is praising her positive mom group experience as the drama surrounding Ashley Tisdale's former "village" continues to make headlines. "My mom groups are everything," Sigler, 44, told Us Weekly exclusively. "My mom friends have gotten me through so many things." The actress added, "I think the most important thing for a mom group is honesty and transparency. I think I learned to do that most with these moms, of just being open and honest about the hardships of motherhood.