Welcome to Lifehacker's Lucid Dream Workshop. Each week we'll learn a little more about the mysterious realm of sleep science, dreams, and how to "wake up" when we're fast asleep.

Remembering your dreams after they happen, or being aware you're in a dream while you're having it can be fun, but not exactly easy to do.

Becoming lucid while you dream is actually the easy part, oneironauts. Now we're going to learn how to hold on to it and make our nightly adventures last. Welcome to Week Four of our Lucid Dream Workshop.

Now that you know what lucid dreaming is, and you know the benefits and risks, it's time to give it a solid try. Get ready, oneironauts -- we're about to take off the training wheels. Welcome to Week Three of Lifehacker's Lucid Dream Workshop.