For health and hygiene reasons, some items are not returnable or exchangeable once the packaging has been opened EXCEPT for the reason of manufacturing defect or shipment of incorrect product. An exclusive design for comfort and compliance as the oxygen mask is held in place preventing leaks and facial pressure points--the absolute perfect pillow designed exclusively for C-Pap Mask users in the correction of Sleep Apnea & related sleep disorders. The voids on each end permit sleeping ease & compliance with ALL C-Pap devices. Filled with soft but supportive hypoallergenic polyester fibers. Cover included. Designed for multiple sleeping positions i.e. stomach and back | 
