The Universe is trying to get your attention. There are a lot of times that we shift and slip into an unconscious state of being...it can be triggered by distractions within our lives...or something that we have an emotional attachment to. Sometimes we need a wake-up call to snap us out of this foggy haze and back into the reality of being within the present moment. I've been seeing the 11:11 quite a bit recently as well...I just take it as a sign that I am paying attention. As to why you are being called and awoken out of sleep....possibly there is something that your trying to push aside in your life????? Maybe something that your having a hard time facing that possibly at night when awoken would be a good time to reflect and seek to understand and resolve something before falling back asleep? There are also other times when the energy on the planet is so intense that we are awakened by it and must help ground it in before being able to return to sleep.