Yes, I did feel it although I didn't realise what it was at the time. I have an electric adjustable bed and because I've got a cold and was coughing at night, I'd raised the head position to a semi-sitting position. I woke in the early hours of this morning when something fell in the flat above me, almost at the same time my bed shook slightly and I assumed (only half-awake) at the time that I'd not adjusted it properly. I realised what it actually was when I heard the radio news this morning. I assume that the metal brackets of the bed made the movement more obvious. http://news.bbc.co.uk/1/hi/england/7266136.stm