How Long Can You Leave a Cat Home Alone? In Plain Words
General information only — not veterinary advice. This page explains, in plain words, what PetMD and the ASPCA say about cats home alone. It does not decide what is right for one cat. For advice about your own cat, talk with your veterinarian.
The time guide PetMD gives
PetMD says the amount of time a cat can safely spend alone varies depending on the cat’s age, health, behavior, and home environment. Its general guide is:
- Healthy adult cats: generally eight to 12 hours at a time.
- Very young kittens still receiving kitten milk replacement: not more than two to three hours, because they require frequent feeding.
- Healthy weaned kittens: not longer than four hours.
- Overnight: most healthy adult cats can safely be left alone overnight for up to 8–12 hours, provided they have access to food, water, and a clean litter box.
- Up to 24 hours: some adult cats may tolerate being alone for up to 24 hours occasionally, but PetMD says daily check-ins are strongly recommended for their safety and well-being.
- More than 24 hours away: arrange for a trusted pet sitter, family member, or caregiver to check on your cat regularly. PetMD says a pet sitter is strongly recommended.
- A week: no. PetMD says you should not leave a cat alone for a week without daily care and supervision.
Cats that may need more supervision
- Cats with medical conditions may require more frequent monitoring, medication administration, or veterinary care, which can reduce how long they should be left alone.
- Highly curious or adventurous cats may also require additional supervision if they are likely to explore potentially dangerous items such as toxic foods, household chemicals, poisonous plants, or electrical cords.
- Kittens require more frequent care than adult cats. Very young kittens may need attention every few hours.
Why cats should not be left alone for too long
PetMD says that although many cats can tolerate periods of solitude, leaving a cat alone for too long can negatively affect their physical health, emotional well-being, and safety. PetMD lists these risks:
- Access to dangerous substances such as toxic plants, medications, or household chemicals.
- Running out of food or water during an extended absence.
- Destructive behaviors, such as scratching furniture.
- House-soiling accidents due to litter box issues or stress.
- Conflict or injuries between cats that do not always get along.
- Delayed recognition of medical emergencies or sudden illness.
- Boredom, loneliness, and long-term anxiety related to social isolation.
PetMD also notes that even young, healthy cats can develop medical problems when left alone, and delayed treatment may worsen the outcome.
Cats are social animals that form bonds with their humans and can miss them when they are away. PetMD says research has shown that many cats value interaction with their people and may even choose human companionship over food in some situations. PetMD’s answer to “Do cats get lonely?” is yes — many cats can experience boredom, loneliness, or stress when left alone for extended periods.
What a daily sitter visit should cover
PetMD says that, at a minimum, a cat sitter should visit once per day to:
- Provide fresh food and water.
- Scoop and maintain the litter box.
- Monitor your cat’s health and behavior.
- Provide playtime, enrichment, and social interaction.
Daily check-ins help ensure your cat remains healthy, comfortable, and safe while you are away.
Everyday care a cat still needs
The ASPCA’s general cat care page covers the daily basics a cat at home depends on:
- Water: provide fresh, clean water at all times, and wash and refill your cat’s water bowls daily.
- Litter box: all indoor cats need a litter box, placed in a quiet, accessible location. In a multi-level home, the ASPCA recommends one box per floor. Scoop solid wastes out of the box at least once a day. Dump everything, wash with a mild detergent, and refill at least once a week.
- A place to rest: your cat should have her own clean, dry place in your home to sleep and rest, lined with a soft, warm blanket or towel, with the bedding washed often.
- Scratching: cats need to scratch. The ASPCA recommends providing a sturdy scratching post or scratching pad.
Getting ready before you go
PetMD gives these preparation tips:
- Calming products: products such as Feliway® MultiCat pheromone diffusers and Purina® Pro Plan® Calming Care probiotic powder may help some cats cope with changes in routine and temporary separation. PetMD says to begin using these products several weeks before your trip for best results. You can also leave blankets, clothing, or bedding that carry your scent in your cat’s favorite resting areas.
- Enrichment: window perches, interactive toys, scratching posts, and puzzle feeders can help prevent boredom and support your cat’s mental well-being during your absence.
- Set your sitter up: make sure your pet sitter has your cat’s feeding schedule and food portions, medication instructions and dosing schedules, your contact information, your primary veterinarian’s contact information, and the contact information for a local emergency veterinary hospital.
General information only — not veterinary advice. How long one cat can be left alone depends on that cat’s age, health, behavior, and home. If you are unsure, ask your veterinarian before you travel.
Sources
PetMD (petmd.com) — “How Long Can You Leave a Cat Alone?” Written by Hannah Hart, DVM. https://www.petmd.com/cat/general-health/how-long-can-you-leave-a-cat-alone
ASPCA (aspca.org) — “General Cat Care.” https://www.aspca.org/pet-care/cat-care/general-cat-care
Checked November 2, 2026.