And whosoever toucheth his bed,.... Is unclean. According to the Misnah x, a bed defiles a man seven ways, so as to defile garments; standing, sitting, lying, hanging, and leaning, and by touching, and by bearing:
shall wash his clothes, and bathe [himself] in water; in forty seahs of water, as the Targum of Jonathan:
and be unclean until the even; be unfit for conversation with other men till the even, though both his body and clothes are washed.
x Zabim, ut supra. (c. 2. sect. 4.)