Psychology explains why people hug pillows while sleeping and what their brain may be seeking

Imagine waking up and realizing you spent the entire night holding a pillow tightly against your chest. For many people, hugging a pillow while sleeping is an automatic habit. Some people cannot fall asleep without wrapping their arms around a cushion, while others instinctively pull a blanket close or curl around a soft object.

Although it may seem like a small personal preference, psychologists suggest this behavior may be connected to some of the deepest human needs: comfort, safety, emotional regulation and physical relaxation. While there is no single scientific study proving that pillow hugging has one universal meaning, research from psychology, neuroscience and sleep science offers several explanations for why the habit feels so comforting.

Why humans seek comfort during sleep

Sleep places the human body in a vulnerable state. During rest, awareness of the environment decreases, and the brain naturally looks for signals that suggest safety. Psychologist John Bowlby, who developed Attachment Theory, argued that humans are biologically programmed to seek emotional security through attachment.

According to Bowlby’s theory, feelings of safety help regulate stress and emotions. While a pillow cannot replace human connection, hugging a soft object may provide some of the sensory cues associated with comfort, such as warmth, softness and gentle pressure.

This may explain why many people instinctively hold something while sleeping, especially during periods of stress or emotional uncertainty.

The psychology behind comfort objects

Another explanation comes from British psychoanalyst Donald Winnicott, who introduced the concept of “transitional objects” in his 1953 paper Transitional Objects and Transitional Phenomena.

Winnicott studied how children often use objects such as blankets or stuffed toys to create a sense of security when separated from caregivers. These objects become associated with familiarity, reassurance and emotional comfort.

Although his research focused mainly on childhood, psychologists believe similar comfort patterns can continue into adulthood. A pillow used every night may become part of a person’s relaxation routine, creating a psychological association between that object and feelings of calm.

In simple terms, the brain may learn that hugging a particular object means it is time to relax.

The “hug effect” and the science of deep pressure

One of the strongest scientific explanations comes from research on deep pressure stimulation. Deep pressure refers to firm, gentle pressure on the body, similar to the feeling of being hugged or wrapped in a weighted blanket.

Researchers have studied this effect because pressure stimulation may help activate the body’s relaxation response. A 2008 study by Mullen and colleagues, Exploring the Safety and Therapeutic Effects of Deep Pressure Stimulation Using a Weighted Blanket, examined deep pressure stimulation and found evidence that it could influence physiological measures associated with relaxation, although researchers noted that further research was needed.

A later study by Ekholm and colleagues (2020), A randomized controlled study of weighted chain blankets for insomnia in psychiatric disorders, examined weighted blankets and found improvements in insomnia symptoms and reductions in anxiety among participants using them.

Although hugging a pillow does not create the same pressure as a weighted blanket, the principle may be similar: gentle physical pressure can send calming signals to the nervous system.

It may also be about physical comfort, not emotions

The reason behind pillow hugging is not always psychological. For many people, it is simply a comfortable sleeping position.

Sleep specialists often recommend hugging a pillow for side sleepers because it can help maintain better body alignment. Holding a pillow can prevent the upper shoulder from rotating forward, reduce strain on the neck and spine, and make the sleeping position feel more natural.

In these cases, the habit is less about emotional comfort and more about the body finding support during several hours of rest.

Does hugging a pillow mean someone is lonely?

Despite popular assumptions, there is no scientific evidence that people who hug pillows while sleeping are lonely, emotionally dependent or insecure.

Many people with healthy relationships and active social lives sleep this way simply because it feels comfortable. Sleep habits are shaped by personality, routines, physical preferences and past experiences.

Research on touch, attachment and sleep suggests that humans naturally seek comfort signals, especially during moments when we are most vulnerable. A pillow may become one of those signals.