Cats kept exclusively indoors require deliberate environmental enrichment to meet their behavioral and cognitive needs, preventing boredom-related welfare problems that are common in unstimulating indoor environments.
Full-time indoor cats face genuine welfare risks from environmental monotony that are often underestimated. Without adequate enrichment, cats may develop obesity from inactivity, stress-related behavioral problems including over-grooming and aggression, and boredom that reduces quality of life. The predatory sequence is a highly motivated behavior pattern that indoor cats must have outlets for through interactive play with wand toys, puzzle feeders, and hunting games. Cats that cannot fulfill these needs may redirect toward inappropriate targets or withdraw into inactivity. A well-designed indoor environment that provides vertical space, hunting outlets, sensory stimulation, and social interaction can support full behavioral expression and good welfare without outdoor access.