"Not too chilly," remember! That's not nearly as good as just maintaining a good comfort level in the first place!

And with that thought in mind, why not just go for maximum comfy right out the gate? The unlimited possibilities of taking up the soft haven that is Kai's nice, cozy bed are always appealing, plus there's the benefit of having those sheets and blankets at hand just in case, somehow, things to get too chilly. Sorry to forsake you, sofa, but the hallway with the bedrooms will be where their journey takes them next.