Imagine yourself sound asleep. Suddenly you hear a low rumbling sound coming from the other side of the bed. Gradually, the sound gets louder and louder until you just can’t take it anymore. “Stop snoring!” This routine happens night after night for some people who sleep with snorers. But as if the snoring weren’t bad enough, that disturbing sound may indicate a serious condition called sleep apnea. At San Marcos Gentle Dental, Dr. Donnelly treats sleep apnea and snoring with a snore guard called the Thornton Adjustable Positioner (TAP).