I imagine the hypothesis is that during sleep, your unconscious mind is free to participate in memory formation / culling and decision making, and that the dist

I imagine the hypothesis is that during sleep, your unconscious mind is free to participate in memory formation / culling and decision making, and that the distracted complex decision makers are tapping into the same unconscious. So while 'sleeping on it' can colloquially mean anything from taking an offer to another interested buyer, or discuss it with a spouse, there's some benefit in just taking a nap before deciding. But IMO, it seems likely the study about distraction and complex decision making is likely bunk. Maybe even about sleep and decision making =(