Slumber Number is a fashion that was released in 1967.
Description[]
"This cute and feminine sleeper set for Francie® doll featured a top made of sheer floral tricot in yellow and pink lined with yellow tricot. The straps were made of pink ribbon. A yellow tricot panty with lace edging on the legs and yellow felt slippers with pink pompons matched her gown. The night mask of yellow felt with pink edging and printed-on closed eyes assured a good night's sleep before her math exam the next day!
All images and descriptions courtesy of Collector Books, publisher of "Barbie Fashion: Volume 1" and "Barbie Fashion: Volume 2" by Sarah Sink Eames
SKU #: 1271"[1]