If anyone wants to improve the comfort of the queen bed. I did buy the queen sized Bunk Board Box Spring mattress and was able to get it all worked in.
Here are the steps, it took about 30 minutes.
Measure your setup.
Buy queen size bunkie board from a local mattress store about $66.00.
Raise the mattress up so it rests on the built in amoire/dresser - let it rest there.
Raise the heavy hinged bed support and use bungees to hold it up before it knocks you out cold, it's very heavy! A bungee hooked on the cabinet handle running down the side and hook under a metal slide bracket, worked for me.
Now you can tilt the mattress out, onto it's side and slide it out of the bedroom.
Bring in the bunkie mattress, on it's side. As you move into the bedroom tilt it and start to bring it up on end - MAKE SURE YOU HAVE THE BOTTOM SIDE FACING THE RIGHT WAY SO YOU CAN DROP IT DOWN IN PLACE BEFORE YOU GET IT IN THERE.
Now also bring the mattress back in the same way
You are going to end up with the bunkie board and the mattress both standing up on end.
Lower the hinged bed board. Carefully lower the bunkies board and mattress together. Don't break any handles or window cords - go slow.
Comfort awaits. Your mattress will no longer sag and you'll get much better back support.
My DW said, "Oh Gosh yeah, much much better."
Good Luck Grotto.