Well, I have a few questions pertaining to actual LDs and WILDs. Any help is greatly appreciated

1.) When doing a WILD (remaining conscious as you're falling asleep), is your body still getting the regular rest it would if you weren't remaining conscious or am I losing actual sleep?

2.) When doing a WILD, what's the first sign that will tell me I've entered a dream state? Will I all of a sudden be in a room and be in a first person perspective or will it fade into view?

3.) After LDing a few times, will it suddenly become habit and you start becoming lucid unconsciously?

And finally 4.) Does time pass realistically or is it faster/slower?