Quality sleep with her than quantity sleep without her

Francisco • Just trying to get by and make the woman I love happy.
So I've begun to notice something when I'm having to sleep somewhere without my girlfriend.
I could sleep longer when I'm sleeping alone and yet waking up is a grind.
However I could stay up late with my girlfriend, go to sleep, and wake up having logfedbless hours and yet feel rested.
Has anyone else experienced this?
I mean I think it's a good sign. There's just something about waking up and seeing her there. I feel like my quality of sleep is just better with her than by myself.
Thoughts anyone? Thanks for reading.