[mikeayles]

This is a bit counter intuitive, but Euro style cabovers are much quieter inside than a 'conventional'. Plus cabovers can have air spring suspension, they're often more comfortable. The downside is much less space inside, which is a big deal for the long haul drivers in the states, whereas in europe, they rarely do more than a month at a time.

[masklinn]

AFAIK nothing precludes having air bags on conventionals, it’s just optional / uncommon whereas it’s completely expected on euro trucks.

[mikeayles]

To clarify, the air bags isolate the cab from the chassis.

There is also suspension between the axles and the chassis which is 99% of the time air on the rear, leaf spring front.

I haven't come across a cab that is suspension isolated from the frame of a conventional, even though the axles are on air. Theoretically as the driver is in the sweet spot of a much longer wheelbase, rather than sitting directly over an axle.