Wisdom Requested: How To Sleep Like A Baby

My two children began sharing a bedroom a few months ago. Daisy (3 years) has slept peacefully though the night for years and Simon (just over a year) has finally figured out how to do the same. We settled them into the same bedroom and hoped for the best. All seemed to be going well until recently.

Recently, one of the children has been waking up frequently during the night. We tried to problem solve and figure out what change could have occurred to start this new pattern. Eventually, we discovered that the wakeful child was being awoken by their sibling's SNORING.

YIKES!

We've separated the children for right now just so everyone can get some sleep while we try to figure out our next step. One of the children has been been moved to our room but we really don't want that to be the long term solution. We actually do have a third bedroom we may be able to use but my husband uses it for his music ministry work.

Is there any way to help the snorer and non-snorer sleep in the same room? The children have instrumental music playing while they sleep. Should I maybe add a fan or a white noise machine? Eliminating my husband's home office isn't entirely out of the question but I'd like to explore some other options before we take that step.

Thanks for any words of wisdom you may have to share!