Renewa Cervical Pillow is designed to keep the neck in the slight hyperextension position at night to counter the stress and strain of the day where we tend to keep the neck in the opposite âflexionâ position. It cures the cervical problems while you sleep. Renewa Cervical Pillow Regular is the best pillow to cure cervical problems while you sleep. Other applications include its use in general prophylactic aid, geriatric care, cervical spondylosis or back pain, neck sprains/stiff neck, and snoring induced apnea. Made of high-quality PU foam to provide firm but comfortable and soft support to the neck and head. Available in one universal size that fits all.