We often pour energy and creativity into the “public” rooms in our houses: great rooms, kitchens, and entertainment rooms. But we should reserve some of that care and effort to create an idyllic environment in our most personal rooms: the bedrooms. Resist the temptation to make your bedroom multifunctional: studies show that we sleep better when we reserve our bedrooms for relaxation, not work. From layout to furnishings, your bedroom designs should reflect your …