Are you saying in footnote 3 that by Mishcav U'Moshav if a Zav lies down on the top mattress (and thereby obviously touching it)that that the top mattress only becomes a rishon letumah while the matttresses below it are tamei as an av hatumah. If that's what fn. 3 intended to say, I don't think that that is correct.

allen schuldenfrei, baltimore, maryland USA