People living with psoriasis often focus on managing the visible symptoms of the chronic skin condition, including inflamed patches, itching and discomfort. But new research suggests the disease may also interfere with sleep in ways that are easy to overlook, even when people believe they are getting enough hours of rest.

The study found that individuals with more severe psoriasis were more likely to experience difficulty falling asleep and increased daytime fatigue than those with milder forms of the condition. Researchers say these specific sleep problems may not always be reflected in overall sleep quality scores, making them easier to miss during routine health assessments.

More severe psoriasis may make it harder to fall asleep

Psoriasis is a long term autoimmune condition that causes skin cells to build up rapidly, resulting in thick, scaly patches. It affects an estimated 2% to 3% of the population and has been linked to several other health concerns beyond the skin, including cardiovascular disease and diabetes. While sleep problems have been reported among people with psoriasis, they have received less attention than many of the condition’s other complications.

To better understand the relationship between psoriasis and sleep, researchers studied 136 adults receiving care at two medical centers in Italy. Participants were grouped according to the severity of their psoriasis using the Psoriasis Area and Severity Index, commonly known as PASI.

Individuals with PASI scores below 10 were classified as having mild to moderate disease, while those with scores of 10 or higher were considered to have more severe psoriasis.

Researchers also evaluated participants sleep using the Pittsburgh Sleep Quality Index, a widely used questionnaire that measures several aspects of sleep, including how long it takes to fall asleep, total sleep duration, sleep efficiency and daytime functioning.

Although overall sleep scores were similar between the two groups, a closer examination revealed important differences.

People with more active psoriasis consistently reported taking longer to fall asleep. Even after researchers accounted for factors such as age, sex, body mass index, disease duration and quality of life, greater psoriasis severity remained linked to more difficulty initiating sleep.

The findings suggest that falling asleep may be one of the first areas affected as it becomes more severe.

Daytime fatigue may signal sleep problems

The study also found that people with more severe psoriasis experienced greater daytime dysfunction, even when their total sleep scores appeared similar to those of participants with milder disease.

Daytime dysfunction refers to symptoms such as excessive tiredness, trouble staying awake and reduced enthusiasm or energy during daily activities. These symptoms can easily be mistaken for stress, a demanding schedule or other lifestyle factors, but researchers say they may also reflect the impact on nighttime rest.

The results highlight an important limitation of relying only on overall sleep scores.

Two people may receive nearly identical sleep ratings while having very different nighttime experiences. One person may struggle to fall asleep for extended periods, while another falls asleep quickly but wakes up several times during the night. Although their total scores may look alike, the effects on their health and daily functioning can differ significantly.

By looking at specific aspects of sleep instead of only the overall score, researchers were able to identify patterns that otherwise might have gone unnoticed.

Why the findings matter

Because the research captured participants at a single point in time, it cannot determine whether worsening psoriasis causes sleep problems or whether poor sleep contributes to more severe disease. Previous research has suggested that the relationship may work in both directions, as inflammation and sleep quality can influence one another.

Even so, the study offers practical insights for people living with it.

Experts say keeping it is under control may provide benefits beyond improving skin symptoms. Better disease management could also support healthier sleep, particularly when it comes to falling asleep more easily and maintaining energy throughout the day.

The findings also suggest that people with psoriasis may benefit from paying closer attention to specific sleep patterns rather than focusing only on how many hours they spend in bed. Tracking how long it takes to fall asleep and noticing persistent daytime fatigue may provide valuable information to share with a dermatologist or other healthcare provider.

Looking beyond total sleep time

Sleep quality involves much more than the number of hours spent asleep. Factors such as sleep onset, nighttime awakenings and daytime alertness all contribute to whether sleep feels restorative.

For people with it, the latest research suggests these details deserve greater attention. While more studies are needed to better understand the connection, recognizing subtle sleep disruptions may help patients and healthcare providers gain a fuller picture of how well the condition is being managed.

By addressing both skin symptoms and sleep concerns, individuals with psoriasis may be better positioned to improve their overall health and daily well being.