The Tongue-Retaining Device: Efficacy and Side Effects in Obstructive Sleep Apnea Syndrome The Tongue-Retaining Device: Efficacy and Side Effects in Obstructive Sleep Apnea Syndrome Download Sleep Medicine News and Updates – Volume 5 Issue 5 Zolpidem-Induced Sleepwalking, Sleep Related Eating Disorder, and Sleep-Driving: Fluorine-18-Flourodeoxyglucose Positron Emission Tomography Analysis, and a Literature Review of Other Unexpected Clinical Effects of Zolpidem