Maine Cat 30 - Interior
As you can see, there is a lot of room on a Maine Cat.  She is 30 ft long, with an 18' beam. 

The starboard hull features  a double berth in the stern, a small dressing area, and the head forward.
Port hull.  Far left -  Table in the stern  converts into a double berth.  Left - looking froward from the galley:  stove to right, sink to left (out of picture), V-berth in bow.

The port hull features a table in the stern, that also converts to a double berth. The galley is in the center of the hull.  There is also a large, single V berth in the bow of the port hull.
Right - table on the bridgedeck.  It converts to a double berth, when needed.

Below - plenty of room for entertaining

Left - double berth in the starboard stern.  Right - composite picture showing the view foward in starboard hull.