Pets today are more than animals. For most pawrents, they are family, and that bond does not stop at bedtime. It follows them into bed, every single night.
So is sharing your bed with your pet actually good for you? Does it help you sleep, or quietly work against you? And does it matter if it is a dog or a cat beside you? Science has some answers, and they are not a simple yes or no.
Why Sharing a Bed With a Pet Feels So Right
Millions of people cannot imagine sleeping without their pet nearby. Sleep is a vulnerable time because we are less alert to our surroundings. Having a trusted pet close by can make us feel safe and calm.
There is also a hormonal reason. Touch and closeness with a pet can release oxytocin, a hormone linked to bonding, like the bond between a parent and child. This can physically calm and relax the body.
Many pet owners also feel less lonely, less anxious, and more peaceful when their pet sleeps nearby. Waking up next to a loved pet can also create a happy start to the day.
But Is It Good For Everyone? Not Quite
Here is where things get complicated. When researchers ask people how they feel about sleeping with their pets, most give positive answers. They say their pet helps them feel comfortable and safe.
But when researchers use sleep-tracking devices, they can see a different picture. There are some studies showing that those sleeping with pets, particularly a dog, may have less sleep efficiency. They may also take longer to fall asleep and wake up more often during the night.
It is not to say that sleeping with a pet is not good for all people. It means feeling comfortable and getting good sleep are not always the same thing.
You may feel happy and relaxed with your pet beside you. However, you may not even realize that you are sleeping less deeply or more lightly.
Light sleepers, people with insomnia, and people who are sensitive to movement or noise may notice this more.
Which pet will give you more comfort without disturbing your sleep?
Of course, if you're deciding between a dog and a cat to sleep with, studies offer a pretty clear answer. Cats may disturb your sleep less than dogs.
Research showed that dog owners tend to have poorer sleep quality. The same effect is not seen as often in cat owners.
Movement is a possible explanation. Dogs may change positions, stretch, dream, or react to outside sounds. These small movements may wake you up, or at least break your deep sleep.
Cats tend to stay in a single spot and rarely roam at night. This may be why they disturb sleep less.
But comfort is not only about movement. Many pet parents find the warmth, closeness, and protective feeling of having a dog nearby very comforting. This comfort might be worth a somewhat lighter sleep to them.
Ultimately, it's up to you to decide which is more important to you: sleep or the sense of security and sense of closeness that your pet provides you.
The Latest Research from 2025 and 2026 Reveals
Recent studies show that pet co-sleeping affects both people and pets in different ways.
A 2025 study from China found that the link between pets and sleep in older adults depends on more than just owning a pet. Also included was the type of pet, length of time with pet, interaction with pet, and health of pet.
Other characteristics of the relationship were explored in a 2025 study undertaken in Hungary. It found that dogs' sleep patterns changed when their owners were not present.
In Japan, adults living with dogs had a greater sense of wellbeing in 2026, according to a study, and sleeping with cats had no clear effect.
In general, these studies indicate that co-sleeping is neither good nor bad. The effect may vary according to person, pet, relationship, lifestyle and pet's welfare.
These are some guidelines to follow:
- Dander from pets can cause allergies, particularly in bedrooms that are closed.
- When pets share the bed on a regular basis, fleas and ticks can become a problem.
- Pet hair, dirt, and other allergens can build up on the bedding.
- Some big pets can steal too much space, making sleeping arrangements uncomfortable.
So , Should You Share Your Bed?
There is no study that can say exactly how comforting it is to sleep next to a beloved pet. Science can measure sleep quality, but it cannot measure the feeling of being less alone at night.
If having a pet in bed makes you feel safe, loved and rested, then that is important. But if you wake up tired, your pet's small movements may be affecting your sleep.
You don't need to sacrifice loving your pet for sleeping well. Even a simple thing, such as providing your pet with a comfortable bed next to yours, can make you both feel closer at night, and better rested in the morning.
