Sofa beds and futons of eras past rarely earned much praise for style, let alone comfort. But as more consumers seek furniture that can do double duty, modern designers are rising to the challenge. By day, these pieces work as stylish seating in a family room, home office or bedroom of that son or daughter away at college. By night, each can transform niftily into a bed for holiday houseguests. For more examples, including a $499 BoConcept ottoman that transforms into a cool cot, look for an expanded photo gallery at latimes.com/home.