I have noticed that when Nathan is not here, I usually to go upstairs with the kids straight after dinner - for them to have a play, or watch some TV for a while. I might spend some time in the scraproom or prepare everything for the next day.
Then, after bath, teeth, story and bedtime; I tend to stay upstairs and watch TV there, so that I can hear the kids, or just be close.
So, for this reason we have bought a sofa for the playroom - a good old "Klippan" from IKEA! The bean bags are cool, but not comfortable enough for an adult a whole evening. It's great, the playroom is getting super cosy, and both the kids and I love spending time there.