Do the cabins have mattresses pads or mattresses in them? Should i bring an air mattress?

Yes, the cabins have mattresses with sanitized covers. You bring your own bedding :) @Richard Gossett, the Full Hookup and Pull-Through sites are 20'x50'

I have a 44 ft. Toy hauler is there pull through or back in

Bring an air mattress just in case

I would bring an air mattress they just had mats the last time we stayed

I believe they have beds.