sharing a bed

you're from the future, so you might not remember
the ads running today about how your bed
doubles in weight over 10 years
from the skin you shed.

does this nocturnal math mean that the person
who will be laying in my bed 10 years from now -
perhaps around your time -
will be someone entirely different than me?

will that still be my wife he is laying next to?
or will that be someone entirely different, too?

will those people buy a new bed, as the ad recommends
and drag what's left of my wife and I down to the street
so that some desperate person
will come along and take us home with them,
only to find their selves mingled with us
in our most intimate histories?