Sleeping with Your Cat: Expert-Backed Pros, Cons, and Health Tips

A sleep expert reveals findings why many would sooner ‘sleep divorce’ their partner than their pet

By: Wendy Troxel

Last Updated: December 10, 2025

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I’m a sleep researcher best known for my work on sleep in couples—I’ve even written a book on the topic, Sharing the Covers: Every Couple’s Guide to Better Sleep. Of all the questions I receive, none comes up more often than whether it’s “bad” for couples to sleep in separate beds. People look to me for permission, hoping I’ll affirm their need to “sleep divorce” in the name of rest and sanity.

But here’s what never fails to surprise me. If I dare to mention that perhaps the family pet might do better with their own bed, suddenly I’ve crossed a very sensitive line! Suggesting partners sleep apart is met with open minds, but hint that a beloved dog or cat should leave the mattress? That’s when the resistance hits.

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According to national surveys, nearly half of all pet owners share their beds with animals. There’s a deep comfort in curling up with a furry companion at the end of a long day. But science tells us this comes with a very real trade-off: good sleep quality is often what’s sacrificed. Pets bring dander and allergens into the sleep environment, which can disrupt rest for everyone, not just allergy sufferers. Their sleep cycles clash with ours—dogs may twitch, kick, whimper, or bark in their dreams, while cats hit their stride during the early hours, turning bedrooms into parkour courses. Even when things are calm, simply adding another breathing body to the room raises carbon dioxide levels and affects air quality, further compromising restful sleep.

Our pets aren’t just pets; they’re family, protectors, and living teddy bears rolled into one.

Despite these disruptions, people will often kick their partner to the couch long before considering banishing the pet. There’s a reason for this deep attachment. The bond we share with our animals is uniquely powerful and especially pronounced when night falls. As historian Roger Ekirch describes, nighttime has always left humans vulnerable, and our drive for connection and safety is hardwired. Even today, our pets fill that hardwired psychological need. They are not just buddies, but family, protectors, and living symbols of comfort.

If the idea of “sleep divorcing” your pet sounds impossible but you’re desperate for better sleep, there is hope. Consider a few practical tweaks:

1. Up-size your bed so everyone, human and animal, can spread out.

2. Try alternate arrangements, like placing a cozy pet bed next to yours, equipped with a heated pad or favourite blanket, to tempt even the most stubborn bed hog.

3. Use a HEPA filter to improve air quality and wash bedding frequently to minimize allergens.

4. Compromise creatively: some families let pets sleep beside the bed early in the night, then join for morning cuddles.

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And here’s an important twist. The pet-sleep debate is a bit more nuanced when it comes to kids. Parents often worry about the impact on their children’s sleep if pets share the bed. Research suggests that most kids and teens who sleep with pets don’t experience worse sleep quality. In fact, many feel more secure and peaceful, reporting better rest when their trusted animal is nearby. For young people, the presence of a dog or cat can ease anxiety and make bedtime a more positive experience. So, while adults may need to make trade-offs for better sleep, for children, the emotional and psychological benefits may outweigh the costs.

Ultimately, sleep is deeply personal. Who we share our bed with, whether it’s a partner, a pet, or both, plays into our sense of comfort and safety. While science shows there can be some downsides to sleeping with pets, the emotional return can be profound, especially for children. My best advice, rooted in years of research and clinical experience (and pet ownership), is to recognize what brings you and your family comfort and to honour that choice. After all, good sleep is about balance and well-being, and sometimes that balance involves a warm, furry body curled up at your side.

This article originally appeared in the award-winning Modern Cat magazine.
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Last Updated: December 10, 2025