Ron, on my 2010 model, the furnace is under the bed along with the fresh water tank.  The water tank is against the rear wall (mounted side to side length wise), and the furnace is at the foot of the bed along with the invertor, convertor and water pump.  That's what made installing the accumulator tank a little tight--but it worked.

Ron:

Yea, what Lmichael said!!!  Furnace under the bed makes it noisy to sleep on esp when it kicks on and off all night. I think your placement is a better idea.

DJM

Our furnace is under the bed also and I leave the blower on and let only the burner cycle (which is barely heard when awake).
Not having blower cycle on & off doesn't intrude on sleep.