Indoor cats rely entirely on their human-provided environment for stimulation, and inadequate enrichment leads to boredom, frustration, and behavioral problems that represent welfare failures.
Indoor cats depend entirely on the enrichment their human caregivers provide, and most home environments fall significantly short of what cats need for behavioral well-being. The result — excessive sleeping from boredom, destructive scratching, inter-cat aggression in multi-cat homes, and stress-related illness including idiopathic cystitis — is largely preventable. Effective indoor enrichment operates across multiple dimensions: spatial (cat trees, wall shelves, multiple resting areas), feeding (puzzle feeders, scatter feeding, multiple small meals), play (interactive wand toys that simulate prey movement), sensory (cat-safe plants, rotating toys, window bird feeders), and social (appropriate companionship). The indoor environment should change over time — novelty maintains engagement. Cats with rich environments show more behavioral diversity, lower resting stress hormone levels, and reduced illness frequency.