Super horny when I sleep?..anyone else??

So for the last few nights I've been having sex dreams, and not even only sex dreams, like one I really needed to masterbate and couldn't get alone for a few moments to do it. Anyways, so one would think that I'd wake up and want my husband all over me but honestly no. It's been a few weeks since we've been intimate and I honestly don't feel like sex. What's up with that?