Keeping babies warm is so important to their health That's why Glenna Anderson Muse designed these knit hats for babies in the hospital where she works as a respiratory therapist. So that every baby can have a cozy cap, the sweet patterns are written for three sizes of preemies and three sizes of term babies (newborn, 3-6 months, and 12 months). Each of the 19 designs uses medium weight yarn and is based on one of four basic hat styles: Basic Paper Bag Hat, Basic Jester, Basic Beanie, and Basic Cone. Seasonal looks include bunny ears, springy curls, patriotic stripes, and Halloween and Christmas characters, but the hats look just as adorable without a holiday theme. Each design is an opportunity to make gifts of love for the babies who need them