There's Orange County and then there's Orange County.
First, there's the practical. Always keep first aid supplies near the bed and extras in the bathroom. Too many of us have woken up bleeding or worse to not take those precautions. Don't get nice sheets ever again, not worth it.
Keep a journal nearby to write things down, too. Might help sometime. Some people go really crazy and use like, white boards or spreadsheets to track things.
I'd tell you to mentally prepare yourself, but without knowing what kind of dreams you have there's no way of knowing. I wasn't prepared for mine, and sometimes they still manage to surprise me. And I've been dreaming over 7 years. Or is it 8...