Class A's with overhead bed over drivers seat?

There are several Class A models from different manufacturers with front overhead bunks. Check the weight limits - some are manually lowered, twin sized and are rated for 225 lbs. and others are electric, larger and will hold 500 lbs. Some of the brands we saw when looking for our current motorhome were Thor, Forest River/Georgetown, Winnebago, Coachman and Fleetwood.