I also suffer from both obstructive and central sleep apnea. Did the hospital sleep study and I averaged 80 episodes an hour. I would also wake up with a soaked bed. I was even worried I would embarrass myself during the sleep study. Please get tested asap, sleep apnea can be deadly. I as well lost a friend to sleep apnea. Diaper's, under pads, and waterproof mattress cover are a good choice until you can sort it out. Do not let it embarrass you like it did me. I delayed seeking treatment for both. Let your DR know you are having trouble. Both are medical problems. You are not alone.
I can tell you, I feel so much better after using the CPAP. But even after I started using the CPAP I still would occasionally wake up wet. Went from a wet bed often, to only occasionally. Because of BPH, surgery, and a damaged bladder. I started using Condom Catheters 24/7. Now the problem is solved.
Good Luck R