Well, I used to be scared of SP, but I eventually got used to it. It's EXTREMELY handy for lucid dreaming. Sometimes you'll get on a roll and it'll be ultra easy to chain many, many dreams, one after the other. It's great. I've been in SP about 20+ times so far. Although I usually only enter it if I can hear people in my house in real life, because it comforts me knowing that someone else is around.

Anyway, I'm not sure if the whole room is just a dream version or not, but I'd say yes. I usually get the sensation of flying around in my SP, and I'll sometimes see a black and white image of my room, but from a different angle. One time I accidentally opened my eyes once and my room was darker than it was in real life. I also saw an unidentifiable person standing near my door which freaked me out so I woke myself up. I also heard my brother calling me, then getting angry when I didn't answer him, which felt kind of weird because it didn't even feel like I was in SP at all, except for not being able to move. But as long as you don't open your eyes, you shouldn't see anything scary. Just imagine your favorite dream scene. Imagine yourself laying on the floor as you're being transported to your dream world. If that doesn't work, just relax, and after a while, believe that you're in a dream, then jump out of SP and into your dream world! Which will most likely start in your room.

Haven't had the slow-moving thing yet, I don't think. But I've certainly heard about it.

Now, if you'll excuse me, I have to go and try lucid dreaming again, hopefully being able to stay in my dream for longer than 2 minutes this time. Words cannot explain how annoying it is when you're trying to hook up with a chick and you're constantly reappearing in your bedroom every few minutes while an angry cat, a forest of spiders, and some kids randomly keep appearing that seem hellbent on doing nothing but stopping you from reaching her...