A pillow for treating snoring and/or sleep apnea features at least one headrecesshaving a bottom area for receiving and supporting a lateral side of a user'sface, and aperipheral area spanning upwardly from the bottom area at a perimeter thereof.A neckchannel extends from the head recess. The peripheral area of the head recessincludesa chin region that reaches laterally outward from the neck channel at an angleandorientation such that the user's cervical spine resides in a relaxed non-extended state,and the user's mandible is maintained in a closed position. In embodiments forcouples,first and second head recesses in the top of one pillow face inwardly towardoneanother, and third and fourth head recesses in either the bottom of the samepillow orthe top of a separate pillow bottom surface face outwardly away from oneanother.