Core CPAP Pillow - 4" Height The Core CPAP Pillow provides proper neck support, comfort and compliance for patients with sleep apnea. The most common compliance issues reported by CPAP users are pressure point soreness and mask leaks from pillow interference. This 4" quilted side panel creates a distinct edge that will not collapse, allowing the mask to comfortably hang over the side of the pillow. The Core CPAP Pillow is durable enough to support the head and neck without losing its loft, yet soft enough to sleep on all night. This pillow also works well for oral or dental appliances, people with fibromyalgia and other chronic pain, or during pregnancy. Pillow size - 13.5" x 19.75" x 4.25".