The Si-Base people I know all seem to be very good at making themselves comfortable wherever they may be, and whatever the circumstances. They will do everything they need to do-- and almost all of it subconsciously-- to ensure their own comfort.
The problem is, at least with some of them, that they fail to realize that not everyone is as good as they are at creating those comfortable, pleasant sensations, and they just think that everyone else must be as comfortable as they are. Also, being Ip temperament, they are not externally-focused or very energetic, so they probably will not being going to great lengths to keep their homes always well-kept and clean and aesthetically pleasing.
I think it was Gul who said a while back in another thread, that if he were having a guest stay over at his house, that he would put clean sheets on the bed, and "clear a path" through all the clutter.
And maybe it has more to do with my Te-HA than Si-DS, but that would not be enough for me. I would have a harder time sleeping soundly if I knew that the floor was so cluttered that I might not be able to find my way to the bathroom in the middle of the night without stepping or tripping on something.
I've already said this in another recent thread, but one issue I have had with my SLI father-in-law is that he keeps his home way too warm and I am never quite comfortable there. But he is comfortable, and that's all that matters to him, and he just assumes that everyone else is comfortable, too.
On the other hand, I do find the Creative Si style of ESj's to be quite pleasing.