When one spouse snores they steal the other parnter’s sleep. If this happens on a occasion one can deal with it. If this happens often it is a serious issue and takes a big bite into one’s shalom bayis. It is a very serious issue, it is not a joke and it is not funny at all. Imagine not being able to sleep night after night. If earplugs work for you, you are lucky. They can be very irritating and in many cases it does not drown out all the sound. You can try a sound machine to help drown out the noise if it is not too loud.
Try whatever you can until you find a solution that works as a couple because sleep is very important, even if the one who snores has to sleep in another room.