Vintage Barbie Slumber Party #1642 (1965)
 
Pink Satin Pajama Top
Pink Satin Pajama Bottoms
Pink Robe with Sash
Pink Open Toe Heels with Blue Pompons
Pink Scale
How To Loose Weight Book
Pink Curlers (6)
Bobby Pins (6)
Blue Brush & Comb

The scale was removed from the 1966 - 1967 version:

Sleepytime Gal #1674 (1966-1967)
 
Pink Satin Pajama Top
Pink Satin Pajama Bottoms
Pink Robe with Sash
Pink Open Toe Heels with Blue Pompons
How To Loose Weight Book
Pink Curlers (6)
Bobby Pins (6)
Blue Brush & Comb

The pink satin of the pajama tops and bottoms seems to especially be prone to show play wear.  The tiny accessories are very hard to find.  The shoes are usually found with the pompons missing.

Mattel issued a Sleepytime Gal Reproduction in 2007.