Very nice, as always. ;D
These should be useful for my Eberron campaign, in which the heroes will soon be ivestigating some Dal Quor-related deaths. *One thing bothers me, though: why does the Insomnious gain bonus HD from the Dreamheld ability, rather than the more common and more easy to adjucate +5 HP? *Because it doesn't really rely on attacks, skills, or feats, the only thing that makes the HD boost better than temp. HP is a bonus to turn resistence, but considering that it's 3 HD behind its CR already, that won't make very much difference.
PS: *IMHO, you should stick with Belly Button Lint with ATTITUDE as your screen name.