Might invest in of these for my Bengal Boys...
The most important thing you can do to prevent boredom in your cat is to make sure their environment is stimulating. This means an environment with things to do – windows to look out of, things to watch, places to climb and safe toys to play with. Climbing posts, scratching posts, cat grass, windows perches, window beds, and a view of birds or squirrels to watch are all great ways to enrich your cats live and prevent boredom.
In nature cats would use their energy to hunt. That hunting requires short bursts of energy then they'd spend the rest of the time sleeping and grooming so they'll be ready for the next hunt (grooming is important so prey won't smell them coming). Without the need to hunt prey they need other outlets for that pent up energy. It’s good for cats to get some sort of workout and changing it up to keep them interested is important. There are many ways to keep your cat lively, giving them access to energetic companions, making a play session part of their day, and/or offering them tempting exercise equipment for use when you’re not at home…that’s why we came up with “One Fast Cat” cat wheel.