The website for this hotel describes the rooms as with or without a window. It leaves out the most important thing: the 'windowless' rooms are below ground level right above the Underground station and the noise of the trains (every 3-4 minutes) went through the bed into my ear. Only the heaviest of sleepers should stay in the windowless rooms. I've stayed in several of the above-ground rooms (the ones with windows) and I can hear the trains but have no trouble sleeping.