flooring ideas

I'm going to put a solid wood floor in my bedroom (replacing a carpet). Subfloor is wood (MDF sheets or something like that). Lots of questions: 1. I want to raise the level of the floor a bit - it's approx 15mm lower than the rest of my flat (don't know why...would have to ask the builder who...

We have lifted up the flooring under our stairs, via 150mm ecotherme covered with 22mm caber deck. We will be using as a washroom with a washing machine sat on top. What would be the best flooring where there may be moister or water if we every get a leak. Had tiles with flexible adhesive on...