The Mount Si High School Choir will host its third mattress fundraiser, 10 a.m. to 5 p.m., Saturday, Nov. 12 in the Mount Si Commons. The event will help fund several choir events this year, including the women’s advanced choir, Bella Voce’s performance at Baylor University in Waco, Texas this spring.

The choir will host its first concert of the year, 7 p.m. Wednesday, Nov. 9. Choir concerts are free and all are welcome.