Eureka Lightning Bug 45 Degree Children's Sleeping Bag UNPARALLELED INSULATION  ThermaShield synthetic insulation blends solid and hollow core polyester staple fibers for excellent thermal properties while maintaining loft and durability; SOFT, WARM LINING  Warm-to-touch peached polyester lining combines the performance value of a synthetic fabric with the soft feel of cotton; slightly fuzzy texture provides added warmth and comfort in all conditions; KEEP YOUR KIDS COZY  Fitting children up to 5 tall, your kids wont outgrow this ultra-cozy camping bag anytime soon. GADGET STORAGE - Internal, ergonomic pocket with hook/loop closure keeps your kids night time essentials within arms reach; FULL-LENGTH LOCKING #5 ZIPPER  with anti-snag webbing, ensures smooth, trouble-free operation; bag can be fully unzipped for use as a blanket, or mated to like models to create a large, 2 person sleeping bag;