"You do understand that the lighter the clothing is, the less warm it will be right?"
Wait...what? Next you'll be telling me gravity makes things fall, not rise.
As mentioned above, I'm looking for a cloth barrier between me and my pad/quilt. A "wearable sheet," if you will. A luxury, for which I'm only willing to pay a small ounce penalty, say...4-5 oz max for top and bottom. Otherwise I'll just wear my dirties to bed. I don't want a "sack," because that defeats the purpose of the quilt.
Tights in cooler weather does sound like an interesting option, will investigate, thanks.