That really leaves you with the current arrangement, replacing the grey chair by the front window with kid stuff and leaving the floating living space opposite the TV. I'd really look into rerouting cable so the TV can be where the large art piece is. It's not usually very expensive and will be necessary in order to keep your walkway from running right in front of the tv.

This is your only living space, correct? Will there be tv in the room? I'm trying to figure out if there is a focal point.

If accurate in your drawing, I am assuming you are leaving the space behind the sofa for a walk way. I’m not in favor of that because everything is off-center. Position the rug directly in the middle of the room, sofa on long wall, love seat under back windows and to balance the two seater on the other end, add two chairs. Ikea piece to the right of the fireplace and something above it to balance the window. Remove the brown table left of fireplace and add a smaller Ikea piece in white for this effect: (except mirror goes over larger piece).

Your floor plan didn't post. Make sure you let the photo go from shaded to full color before you press submit. I had an apartment the same way once and purchased a wire curtain stretcher from IKEA designed to be mounted wall-to-wall. I apportioned off my bed area from the doorway and hung a floor-to-ceiling curtain there with hooks that could be opened and closed. Something like that might afford you a greater sense of privacy. I also looked into purchasing an outdoor gazebo and assembling it indoors and putting draped fabric over it to separate my bed from everything else and also to offer some soundproofing at night, but I didn't end up staying long enough there to get that far with the decor.