Amscan Slumber Party Large Sleep Over Invitation Card (8 Piece), Pink, 7.4" x 5.2" Our Slumber Party Large Invitation is shaped like a sparkling pink sleeping bag with glittery butterflies and a lime-green glittery polka dot lining with the headline, "Sleepover Party!" Measures 6 1/2" x 4 3/4" Available in packs of 8. Comes with matching envelops.