The bedroom; one of the most sacred rooms of the house and one of the rooms where we spend the most time (even if it's to merely sleep). It can also be one of the few room where you can design and decorate it to meet your particular tastes, and not have to worry what Tom, Dick and Harry thinks, as they'll never see it. For couples, there needs to be a balance, a juggling act, sacrificing personal extremes and coming to an agreement on a design that works for both.
A teen will most appreciate an approach to their room as their mini, self-contained apartment where they can spend most of their time comfortably. Regardless of size, a teen's bedroom needs to be versatile enough for them to spread out and get homework done, hang with friends, lounge and sleep, all while reflecting their personality.
Comparing mattresses can feel like comparing apples to oranges, since everyone has a finely tuned preference for what sends them off to snoozeville. Some want to sleep like Aslan on the stone table in Narnia; others prefer to feel like they're sinking in a vat of quicksand.