Ever since I got used to subs, I could never go back to dubs. Watching anime with English voice acting would be like playing Halo with the cinematics dubbed in Japanese. Some things just don't work.
Wow, I knew Megami was nice, but I didn't think it was THIS nice. Sadly, this is yet another one of those things that you miss out on if you can't read Japanese >_>
Like all merchandise, a bedsheet like that should be hung/displayed and not used. That said, I can certainly see some people being tempted to use it...