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Should I let my pet sleep with me? The truth about sleeping with cats and dogs. | Opinion


In my clinical practice, I approach the subject of pet-free sleep with extreme caution. I'll recommend it, because it's my job, but I know most people will ignore me.

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  • Sharing a bed with a pet can disrupt sleep due to their different sleep cycles, allergens, and increased carbon dioxide levels.
  • While removing pets from the bedroom is ideal for better sleep, many pet owners prioritize the emotional comfort of their presence.
  • Minimizing sleep disruption from pets can be achieved through strategies like using a larger bed, air purifiers, and creating separate, inviting pet beds.

As a sleep researcher who studies couples and their nighttime habits, I’ve seen just about every sleep arrangement imaginable. Separate bedrooms, snoring solutions, blanket wars − you name it. However, nothing gets people more defensive than when I suggest their beloved pet might be the reason they’re not sleeping well. 

Suggesting a “sleep divorce” from a human partner? Many people are open to it, especially if their spouses snore like freight trains or insist on stealing all the covers. But from the family dog or cat? That’s where many people draw the line.

I might as well propose they give up their phones, coffee, chocolate and Netflix, combined.

The truth is, sharing your bed with a pet is a recipe for disrupted sleep. Science backs this up. According to a survey by the American Academy of Sleep Medicine, nearly 50% of pet owners share beds with their furry friends

Let's be honest, pets make lousy bedmates

Pets shed dander and bring in allergens, even if you’re not allergic.

Dogs have shorter sleep cycles than humans and often experience active rapid eye movement sleep, which can include twitching, running or even barking as they chase dream rabbits. (Long-lasting barking or howling can be a sign of a sleep disorder in dogs.)

Cats, on the other hand, get their major sleep period during the daytime, which means they’re often more active at night and may decide that 3 a.m. is the perfect time for a dash across your dresser.

Even when pets are not actively moving, just having more bodies in the room can increase carbon dioxide levels, which can affect air quality and, yes, the quality of your sleep

Despite all this, people are often far more willing to sleep apart from their spouses than from their furry friends.

In my clinical practice, I approach the subject of pet-free sleep with extreme caution. I’ll recommend it, because it’s my job, but I know most people will ignore me. 

Why? Because the bond people share with their pets is powerful, especially at night. As historian A. Roger Ekirch has observed, nighttime has always been humanity’s most vulnerable time.

We evolved to seek safety in numbers, and today, that sense of security often comes from a warm, snuggly animal at our side. Our pets aren’t just pets; they’re family, protectors and living teddy bears, rolled into one. 

If 'sleep divorce' from pets isn't an option, here's what to do

So, what’s a sleep scientist to do? If you’re unwilling to banish your pet from the bedroom, there are ways to minimize the impact on your sleep.

First, consider upsizing to a larger bed. More space means fewer midnight wake-ups from a dog doing somersaults or a cat kneading your stomach.

Invest in a good air purifier with a high efficiency particulate arresting filter to reduce dander and allergens.

Wash your bedding frequently − twice a week is ideal − to keep things fresh.

If possible, create a cozy pet bed on the floor next to yours. Make it so inviting that even you’d want to curl up there (heated pet beds can be a game-changer).

Some people find success with a halfway compromise: The pet starts the night in its own bed, but is invited up for morning cuddles. 

Here’s the thing: Sleep is about trade-offs. Sure, your sleep might be objectively better without a pet in the bed, but for many, the emotional comfort outweighs the disruption.

That mirrors what we know about human couples. Research shows that even when sharing a bed with a partner comes with objective costs, like disrupted sleep, we overwhelmingly prefer it.

Why? Because the emotional benefits of sharing a bed, whether with a partner or a pet, often outweigh the downsides. 

So, if you find yourself clinging to the edge of the mattress while your dog dreams of chasing squirrels or your cat practices its Olympic gymnastics routine, just remember: You’re not alone, and you’re in good (if slightly disruptive) company. 

Wendy Troxel is a senior behavioral and social scientist at RAND, an adjunct professor at the University of Pittsburgh and University of Utah, and author of "Sharing the Covers: Every Couple's Guide to Better Sleep."