Disney High School Musical - HSM Slumber Sleeping Bag by Disney. $29.99. Pattern: High School Musical. Great for sleepovers, parties, road trips & watching the game! Poly fiber fill inside to keep light, yet warm. Can also unzip to cover a twin bed. Genuine licensed merchandise. Machine washable. One slumber bag. Size when zippered: 30 x 66 in (76.2 x 167.6 cm). Width doubles up when unzipped to cover a twin or single size bed.