I made a front sleeping hammock in my #2 bus, a '67 Kombi.
It was easy.

Two wooden closet rods and four sash window holders from the
hardware store.  Canvas cloth to sew the hammock.

I drilled four holes--two in the front windshield pillars and
two in the pillars behind the front doors.  Size--just big enough
to accept the nylon plunger of the window holder.  Position--
to clear the steering wheel ('67 low-back seats not a problem.)

Then I drilled a hole in the ends of the measured wooden closet
rods (1-1/4" or so dowels) large enough for a tight fit of the
window holder when inserted.  Also  an oval hold through the
rod at the position to allow reaching the handle-end of the
window holder when inserted.

When it was time to bed down my daughter (now 26!)  or son, we'd
just snap the rods in place and there was the sleeping platform,
ready for a sleeping bag and baby.

Haven't needed that for #3 ('76) and #4 ('81) buses, so I
haven't looked at the body pillars of breadloafs and bricks
to see if the same setup would work, but I'd bet it would.

Questions:  email me (jones@colorado.edu) since I digest....

                                Richard A. Jones
                                Boulder, Colorado
                                '81 Vanagon, Mr Bus