Alone in bed

I just put my son in his room for the first time in a week (other than naps), I'm feeling so alone in my bed. I'm not sure how to cope with this feeling. He sleeps so much better when he's with me, as I'm watching the monitor he's tossing and turning and had been for an hour. Sucks when you and your SO live in separate houses and he works in the oil field and has been on nights. :(