Dom to sub gift

I'm looking for a gift for my partner/sub.

A little bit of info: We currently live apart, but will be living together in a few months. We regularly spend the night over at each others place, but we're both very busy, and finding time is hard.

Sometimes she misses me too much to sleep well, even if we talk on the phone for any length of time before we both go to bed. I've thought of getting her a fluffy pillow (she loves fluffy warm things), one big enough for her to spoon. I've also thought of making her a soundtrack to fall asleep to (she often has music playing while she is sleeping). I think maybe a combination of both?

Is there any momento that you D's out there have gotten for your sub that they can keep beside them/sleep with?