<human>: Can you summarize the given text in a few sentences?

My SO and I moved in together a few months ago but have been together a number of years. Everything else about moving in hasbeen pretty great but we have trouble at night.

We have a standard sized double bed which we have been sharing since moving in. We have shared beds when travelling together and this wasn't such a problem those times. Here's what happens: we go to bed each on our own side and with half the bedding (queen sized usually but sometimes only and queen sheet and single duvet) but in the middle of the night I wake up to find my SO in the middle of the bed, often with the bedding wrapped around her and none on me. At times I have very nearly fallen out of bed because there is so little space for me. Unfortunately, my SO takes the view that she can't control what she does in her sleep at all but I can control how I deal with it when I wake up. Previously she told me to pull the blankets over but when I tried that she was gripping so hard that it woke her up, which she was mad at me for doing. Her other solution is that I hold onto the bedding tighter so that she can't pull it off me, but that requires me remembering to grip it tightly while I'm asleep. 

Has anyone else experienced this before?  What helped to make it a more peaceful night for both of you?
<bot>: My SO wakes me up every night by taking the blankets and pushing me to the edge of the bed, how can we both get a peaceful sleep?