I have sleep apnea and snoring. this is what I've learned over the years 1. outside of cpap.. there really aren't any Devices that work. Mouth guards nasal openers.. etc.. do not do anything. 2. cpap is a pain in the butt.. and has a low compliance long term. 3. Snoring and most apnea(can be a brain issue) are jaw / tongue / tonsil issues. 4. If you want too fix apnea / snoring surgery of some sort is required. 5. Though it will make you feel better and sleep better fixing a deviated septum will also make you snore louder.