Many people get caught up when decorating their home, thinking it has to be a certain style or it will clash. Some Eclectic styles are the best decorated homes you will ever see. You could have a Contemporary sofa and a more modern cocktail table and end tables, have fun decorating your home.
Decorating your home can make you lose your mind if you are a big match-match type person. The decorated home where everything matches looks good, but give your home some charm or character. Mix Woods, I know you are saying, really? Yes, Mix woods and mix styles to show your personality. Now, let me clarify. I would not necessarily say use Oak and Mahogany together, although it could be done. Mahogany makes me think of a more formal atmosphere and oak is a dated casual style wood. Instead, use mahogany and walnut maybe.
Everyone has their own decorating style and flare when it comes to their home, I am just saying do not stress over it, and have FUN!