If you snore badly enough, you’re not sleeping. You just close your eyes and effectively hold your breath between gasps of air.

I wasn’t breathing for 40 seconds every minute. 10+ hours of sleep and woke up dead tired.

With the CPAP I get 5-6 hours and wake up fully rested. Worth the pain of figuring out which mask didn’t make me feel like choking (it was the nasal one)