Hello Captain, surprisingly this does happen to many people and it will be fine after awhile..... The slope of the head board side makes it feel as if one if 'pinned in'. Our Hemisphere is huge compared to our last camper, but the bed room has that slope and it felt like sleeping in a collapsing cave... for a week. We have two sliding doors and the swivel tv and two windows.
Open up the room as much as you can in the minds eye. Open the windows and have the shades up at night (I know it may be a little noisy). Keep the door open and sleep (your wife by the door) with your heads by the tv side. Have the tv swiveled half open to 'see' into the front room or take it out if it is not too hard to 'open up' the bed room. Have a night light in the 'main room' to shine a little light into the bed room. Remove as much 'stuff' from the bed room as possible to make it seem/feel bigger.
It is mostly getting used to a 'new space and a new place'. It may help to sleep in the 'main' (open) area for awhile until the urge to sleep in a real bed hits everyone.
You have a very good set up and I would not recommend to change to another unit. A 'bigger' unit does not mean a very much 'bigger' bed room, only better quality doors/cabinets/storage/tv/ etc.
2013 Forest River Salem Hemisphere SBT312QBUD
2001 CrewCab F-250 7.3 PowerStroke Diesel
SuperChip, BTS transmission, 6.0 Trans Cooler