I always meditate in my bedroom or a bedroom. I try to make the space i am going to meditate in as quiet as possible. In my bedroom i either meditate on a yoga mat or sat on my bed or a comfy chair it is important that the space or place you meditate is comfortable.
Usually at home, in my evening room.. I use my favourite mat, put it on the floor. Then I find my perfect pose, the most confortable one, sometimes I just lay with arms and legs spread, sometimes I simply sit, legs crossed. I usually put on some relaxing music and start breathing slowly.. And that's it!