Why won't my cat use the cat flap and sleeps in the litter box?

Great question! This can mean a couple of things. It could be that Lancelot is sick. He could have diarrhea, stomach upset, may be in pain, have feline idiopathic cystitis, or bladder stones. He could be feeling so badly that it's not worth him getting out of the box only to have to return again. There are other reasons, such as feeling territorial and wanting to keep other cats from using it, but it's very important to rule out a medical cause first. He should see a vet for a check up, and I do recommend getting blood work and a urinalysis done. If he does have a medical reason for this behavior, the vet can diagnose it and discuss treatment options If he's healthy, the vet can discuss behavioral causes and treatment for that. I'd take him into the vet in the morning. I hope this helps!

That does seem odd. It is important to encourage her to use the litter box as holding the urine can increase the risk for a bladder infection. Cats are sensitive to the type of litter, size of the box and location of the box. If you have more cats, you need 1 litter box per cat + 1 additional box. You should also have a litter box on every floor of the house. This article discusses different types of litter and litter boxes: https://www.petcoach.co/article/cat-litter-finding-the-right-fit-for-your-cat/ In general though, cats prefer large, uncovered litter boxes, clay-based clumping litter that is scoped every day and a private, quiet location. If you have other cats or dogs, if they can access the litter box, it may cause your kitty to be afraid that she could be trapped in the box. Cats are a prey species in the wild and they still retain those instincts. Here is a great article about cat's instinctual needs: https://www.petcoach.co/article/why-every-cat-needs-a-place-to-climb/ Use a Feliway diffuser, set aside 30 minutes a day for vigorous play and/or switch the food to Royal Canin Calm. Most cats response best to combination therapy. I hope this helps and please feel free to post any additional questions.

Laying in the litter box is not uncommon for a cat that just moved to a new home, many cats tend to do that, they tend to feel "safer" in the box. if he does not seem to have any problem urinating, if he is eating and drinking normally, just give him some time to open up, he will grow out of it.

Yes he will be teething but it is likely he is anxious and unsure of his environment and is trying to hide in the litter box. Comfortzone or adaptil diffusers are very helpful, as are natural calming supplements such as kalm aid or zylkene or specialised calming/stress diets. Providing him a cardboard box with comfy bedding and only a small, kitten sized doorway can help to provide him a safe hiding hole until he feels more comfortable

Unfortunately there is not a lot you can do to discourage this bevahiour. Anything that you do to try and make it an unfriendly sleep environment would also make the litter box feel unsafe to do her business in. I would recommend making sure your kitty has a couple of nice comfy spots where she CAN sleep peacefully, and encourage her to use those areas rather than the litter box. You can gently pick her up from the litter box and place her in an alternate location, using products like catnip and Feliway in the alternate areas can help too.

I love that you have already switched to the unscented litter as that can be a big problem for many cats. Putting the litter box in the shower is a great idea. I would also make sure to clean up the spots he went outside the litterbox using an enzymatic pet stain cleaner to ensure he does not keep smelling urine/feces there and think that it is akin to a litterbox. Other things, like cleaning the litter box often, having multiple litterboxes which are different types of boxes, and trying different types of litter (such as fine-grain litter) may also help you figure out what type of litter Mittens likes. While it certainly sounds like Mittens is having trouble getting used to his new litterbox, it is important to remember that internal diseases (like organ, hormonal, or orthopedic diseases, among other possible causes) can cause Mittens to have a hard time making it into the litterbox so it is important to take Mittens to your vet for evaluation to make sure we are not missing something else that is making it hard for Mittens to make it to the litterbox. I have attached a link to an article with more great suggestions below. Good luck! https://www.petcoach.co/article/how-to-train-your-cat-to-use-a-litter-box/

Sounds like your cat has a bit of a sense of humor. :) If he's sleeping in the litter box you may want to try moving it to a different area to see if he'll use it. If he's had accidents, then placing the box where he has gone before may encourage him to use it. It may be that he just prefers to use the other litter box solely which is fine as long as the UTI is cleared up and he's otherwise healthy. Adding in a comfy bed where he now enjoys sleeping may also help!