DELUXE READING PILLOW The ComfortSpa back pillow for bed sitting up is made of shredded foam that conforms perfectly to all body types for optimum alignment while relaxing upright. This large pillow measures 19 inches high by 17 inches wide, providing firm ample back support. Each arm extends out 12 inches to support your shoulders and neck, reducing stress on joints and muscles for optimum healthy comfort. BED WEDGE The ComfortSpa pillow for sitting up in bed is shipped compressed. Just remove the wrapping; loosen the shredded foam by shaking for 5 minutes, or by placing it in the dryer (low heat) for 5-10 minutes. Allow 24-48 hours for pillow to fully expand.