cruises and snoring

A friend of mine has never been on a cruise, and would like to go. We travel well together, and I enjoy cruises. The problem...she snores like a freight train. She's conscious of it, and tries her best to accommodate. When we do weekend trips together, she'll go in another room for an hour to try and give me time to fall asleep. But the reality is that it never works well and I end up being tired and crabby.

Needless to say....cruise rooms are TINY. I've been putting off the idea of this trip because Im not willing to drop a chunk of change on a trip and be miserable and tired the whole time. A weekend is one thing, a week on a cruise is another.

So Im looking for ideas that would be fitting for a small stateroom on a cruise ship. For example, it wouldn't work out well to pack a strong fan in my luggage and haul it on my flight,etc. And I don't think a little travel fan would cut it here. Ive thought about trying to fall asleep with earbuds in...but I have an irrational fear of losing/breaking my iPhone in the middle of the night doing this. Would it be wrong to get a script for a sleeping pill? I've never really taken anything and wouldn't even know what to ask for! My dad has had bizarre reactions to ambien, so I know Im not interested in that.