BABY COMFORT - Made of 100% natural cotton, the sleep sack help baby to stay cozy in its ROOMY SPACE CONVENIENCE & SAFETY - The 2-Way zipper design makes DIAPER CHANGE EASIER than EVER, especially during nighttime. Plus, the ZIPPER PROTECTIVE COVER at the top PREVENTS baby from CHEWING 2-way zipper for easy dressing and diaper changes;The detachable sleeve design, adjust as needed.Perfect sack design allows room for kicking and cannot be kicked off at night. EASY TO CLEAN & LONG LIFETIME - Machine washable, and as the material is 100% natural cotton, these sleeping bag can serve up to quite many months Many types of thickness for you to choose:1.5tog,2.5tog and 3.5tog. Package Contents:1X Blanket(NOT PILLOW INCLUDED)