There HAVE been changes to comfort. Comfort also depends on an items range. Like a rug will increase comfort for a range of maybe 10 feet around it and a bed for 10 feet.

So rug + bed means both count, but only in a 10 foot radius.

The high 15+ comfort rating require a LOT of decorations, items, wall mounts, rugs, fires, ligting, etc. all within 10-20 feet of each other to remain continual