Hello SS:

It is more likely that the periods before and after her Lucid dream (which probably only took up a small portion of her night) was restless, which may have actually contributed to her having the Lucid dream in the first place. Lucid dreaming would actually contribute to, rather than subtract from, the amount of energy a person sponges up during the sleep period. Same for OOB experiences. As we travel, we collect energy like a magnet.

We also need a certain amount of deep Delta to really have a good restful night, and if she was restless enough to induce a longer Lucid dream period, she probably didn't get much Delta.

Cheers!
Unis