Sleepybo is an ultra-supportive and comfortable pillow. Uses Yogibo patented Fibead filling for a head cradling gel feel. Completely conforms to your neck no matter what position you sleep in. Each side provides different levels of firmness and temperature. Fibeads - special blend of micro beads and polyester fibers. Sleepybo Pillowcase Turquoise. A soft replacement pillow case cover to help you sleep comfortably at night. Made out of a soft cotton/polyester blend. Comes with a small storage pouch.