Wandering along the edges of rec.crafts.textiles.sewing, I found the
following bit of electronic flotsam written by "BEI Design"
in
:

KwikSew has men's pajamas in XXL, it would not be too difficult to
grade them up two sizes.

http://www.kwiksew.com/

McCalls also carries men's PJs in XXL
http://www.mccallpattern.com/item/M4...n_uniforms&pag
e=1

You might also be able to find 4X patterns for "scrubs", which would
work for PJs.

Could you please point me to instructions on the web for "grading" a
pattern up? I have to admit being new to sewing.