Ferrets sleep a lot during the day, but for a solid 4-6 hours are very active. Ferrets should be allowed to roam around SUPERVISED for ideally 4 hours a day, too many people treat them like cage animals and do not provide this enrichment. Their not cage animals, but they are too mischievous to allow full roam of the house unsupervised as they will tear into something or get somewhere they aren't supposed to! I personally supervise my ferrets for almost a hour every morning and a couple hours every afternoon. A lot of times I can get away with making dinner and stuff while their out in the evenings, but one of them likes to chew on shit he's not supposed to and one likes to climb as high as he can on the couch but is a clutz and prone to falling lol. One of them is a good boy and doesn't really get into shit and kinda follows me around like my shadow, so he isn't too difficult. Depends on their personality I suppose! Usually my SO and I are watching them together so one of us can keep them from getting in trouble and the other can get shit done. I have had cats and they don't seem to get into the sort of shit my ferrets will lol. Never had issues with my cats getting into my snack cabinets and treating them like a dig pit LOL. I also have harnesses for them and take them on walks around the yard so they can sniff new things. Ferrets are awesome, but a lot of people don't give them proper care. It's hard to blame them because there's not too many good resources on caring for ferrets anyhow, takes tons of personal research. They really should be given lots of enrichment, and the less ferrets u have the more u personally need to entertain them. For example having one ferret is basically abuse unless you hang out with the poor guy constantly, where having 2-3 still requires attention but they can entertain each other to some extent. After getting my last from Petco it took 2 weeks after switching diet before he didn't stink anymore. It's a shame what they go through in most petstores/ homes :( it's almost like having a permanent kitten