looking for either a non smoking, quiet small studio or a room with private bathroom in Central London for 2/3 months to start off with from asap

Hi,

I live in Oxford and I would like to move to Central London asap.I am looking for either a non smoking/quiet, small studio or a room with private bathroom or en-suite in Central London for 2/3 months to start off with . Earl's Court, Kensington, Hammersmith, Chelsea, Westminster would be preferable as I worked a bit in the past in those areas and I know them a bit, but other Central London areas  would be considered as well. I am a very calm, sporty, friendly, tidy,non smoker. I love foreign languages, theatre, culture and museums, nature, reading, sport ( I am keen swimmer, runner and tennis player) travelling. Cheers