The Shelby County High School theatre department will perform &8220;Once Upon a Mattress&8221; on April 15, 17, 18, 19 and 20 at the SCHS auditorium. The play is a light-hearted take on Hans Christian Anderson&8217;s &8220;The Princess and the Pea.&8221; &8220;Once Upon a Mattress&8221; will take place April 15, 17, 18 and 19 at 6:30 p.m. A matinee performance will be April 20 at 2:30 p.m. Tickets will be sold before the show at $3 for students and $5 for adults. All performances will take place in the SCHS auditorium