Open Question: What works better for sleep apnea? The chin strap or the mouthpiece?

My husband woke me, and almost every night b / c when I snore I suddenly stopped breathing. Most of the time, I woke up headache, and sometimes I feel tired. I am very clear that there is sleep apnea, just want to know if anyone knows what works best not to chin, with or mouthpieces of snoring and sleep apnea help. I would like to try prior to the visit, the doctor this first. ~ Thank you