There is evidence to suggest that poor sleep quality and duration can increase the risk of stroke.
Several studies have found that people who report poor sleep quality, including difficulty falling asleep and staying asleep, are at a higher risk of stroke. Additionally, individuals who regularly sleep less than 7 hours per night have been found to have a higher risk of stroke than those who sleep 7-8 hours per night.
One possible explanation for this association is that poor sleep can lead to hypertension, a major risk factor for stroke. Lack of sleep can also disrupt other physiological processes that are important for maintaining cardiovascular health, such as inflammation, glucose metabolism, and endothelial function.