C.L.
Is there something waking her up? A noisey neighbor going to work, hungry, teething, ear infection, etc? If not, it is probably just a phase. If you think about it, you have someone to sleep with and cuddle with, your child probably just yearns for the same connection. The spare room is a good thing if you don't want them in bed with you, but my 2 year old wakes up about the same time and I just put him back in bed with us for a few hours. We really don't care and he will outgrow it. He sleeps well the rest of the time in his own room, morning is just like a treat/cuddle time for all of us. I think it is kind of strange that some people feel their parenting responsibilities end at bedtime and that a child should "just cry it out" and "learn to deal". It reminds me of putting a dog in a kennel and leaving for a few hours aka expecting to throw a child in their crib and go to bed for a few hours and leave them to sit by themselves. While I do crate my dogs to keep them out of mischief, a child is a little bit different. I also see it as he will only be little and want the attention once, someday I'll be wishing for these days again.
Good luck with whatever you decide. Dr. Sears has some good information on different levels of "attachment parenting" and helping the children who are a little bit more cuddley through things.
C.