Cats can get bored just as humans do, especially if they are strictly indoor cats. They are naturally inquisitive animals and have senses much more acute than our own and so they require a lot of stimulus to keep them entertained on a daily basis. Cats are intelligent and if left alone all day can get bored, lonely, frustrated or even depressed and they do not prefer to be left alone. A bored cat can be a stressed cat, and if a cat is stressed? Their behaviour can be destructive or even difficult. Excessive meowing and inappropriate urination can be a signs of a bored cat. And for your cats not to feel bored and stressed, provide them activities during the day, can be climbing or jumping to help and keep them alert and happy all day long. :)