How do you keep your 9 month old warm at night while sleeping?

kasey
We keep our heat at 70 but our room (she's still in our room in her pack n play) tends be colder for some reason. I put footed pajamas on her but I don't think that's enough. Her toes and hands are sometimes freezing when she wakes up!
I don't trust a blanket just yet. Plus, she's a little cricket anyway so she would kick it off. As far as those unfooted sleepers, she hates them because she can't move around! 
What do you guys do?