How much cleaning does your keyboard need? On our Notebooks I just use a very soft bristle brush, my wife paints, to wipe away debris then a few very light swipes with a slightly water dampened microfiber cloth. Usually I just drag the cloth over the keyboard letting its weight do the job.
If I were getting it so dirty it needed scrubbing, I'd use one of those ultra thin membrane KB covers when operating. I don't close the lid on the one I have not wanting to strain the hinge. But I don't use it at all mostly as the KB only accumulates very light dust a quick blast of air from maybe a foot away will usually work.