Have you tried different layouts? For example, I wonder how the room would feel/work for you wth the bed on the dresser wall. Perhaps you can add a seating bench at the end of the bed or some seating at the window (depending on how you enjoy the view). For the view, what type of light control do you need? What do you currently have as a blind and is it sufficient? What type of natural light do you get in the room? What exposure? Is the TV in the room essential and is at the right height for you? What size is the bed? With more info, I'm sure pros will chime in and give you ideas. It's a nice spacious room. I'd love to have your problem. :)

Nice!

*You can definitely do a cal king, maybe even a poster bed.

*2 chairs in front of the bed facing the television and window.

*leave Television where it is, but remove the dresser and mount it

*A long console would look nice under the window or the 2 chairs and a table.

*a couple poufs and pillows or bench in front of the fireplace

*put tall dresser on the wall opposite fireplace

The floor plan you posted actually shows the best furniture layout. Switch the bed and the mirrored dresser. The mirror will reflect your view not the bath/closet. It looks like you have a nice king bed. I would look for larger night tables and fill up that wall since you have the room. An upholstered bench at the foot of the bed gives a place for setting pillows at night and clothes for the day. Also a place to put on shoes and just take up more space. I need complete darkness so would add blackout drapes along with the blinds you have. It will help bring in color and softness to the room. You need to decide what the color is for bedding and accessories. Is your TV too wide for above the fireplace? I would mount it there if it would work and move the dresser to the wall next to the bath door so all your clothes are close to the closet. I think changing the arrangement will make it feel less huge and more comfortable.

Maybe get a new TV console that raises the tv for viewing. It could stay up at the end of your bed if the end wall is too far away

The room seems large because everything is all cramped in half the room. It will always feel off if you keep things as they are.

You have a fireplace and a little library. I'd want an intimate little seating arrangement (2 comfy chairs?) in front of it, and a high pile small rug.

There's no law that says you must put a bed against a wall. (Houzz article on floating the bed.) Someone mentioned a four poster bed upthread and LT Dub shared a picture of a canopy. Those beds feel cozy to me. CB2 has a couple of nice modern ones. You could float the bed in the room and put the TV on a unit that rolls or get one of those end of bed unit that hide and lift the TV (pricey but no clue of your budget). You've decided to watch TV in bed so that's driving your layout. Only you can determine the optimal viewing distance. There are guidelines out there according to TV size but they don't take your particular eyesight into account.

So tartanmeup got me thinking outside the box. The fireplace and bookcases next to the window does invite seating in that area. You could play that up with more bookcases (taller than your headboard) facing them with the headboard on the back side centered in the room. Put your Tv on the opposite wall so the bed faces it making watching it from bed easy. Centered in the room gives an open walkway around the bed.

Consider building a partial wall to place the headboard against instead of bookcases. Still keeps the feeling of space.