Hi Jeanette
The facing bench seat is quite short around 1.4m long:
The bottom bed makes up by dropping the table, and then arrange the back cushions from the two seats. If you want there is also an infill bit so you can use the side bench as well to make a much bigger bed. We never use this as there is enough room with out for our son.
Never had a problem being inside, plenty of room on table for lego etc. We can also sit in the swivelled round front seats, so makes for enough room to watch TV etc if we need to.
We are in Ipswich, so a bit of a hike for you, but is=f you are struggling you are more than welcome to have a look.
Chris