Alcohol withdrawal can have a significant impact on sleep quality, but the nature of this impact is complex and can vary depending on the individual. According to a study published in the Journal of Clinical Sleep Medicine [2], alcohol withdrawal can lead to a range of sleep disturbances, including insomnia, nightmares, and sleep fragmentation. These symptoms can persist for several weeks after alcohol cessation and can have a significant impact on overall health and well-being.

However, the relationship between alcohol withdrawal and sleep quality is not straightforward. While some studies have suggested that alcohol withdrawal can lead to improved sleep quality [3], others have found that the opposite is true [2]. This may be due to the fact that alcohol can initially act as a sedative, helping individuals fall asleep more easily, but then disrupts sleep later in the night [2].

It is also worth noting that the severity of alcohol withdrawal symptoms can vary widely depending on the individual's drinking history and other factors. In some cases, alcohol withdrawal can be life-threatening, and medical supervision may be necessary [1].

In summary, alcohol withdrawal can have a significant impact on sleep quality, but the nature of this impact is complex and can vary depending on the individual. While some studies have suggested that alcohol withdrawal can lead to improved sleep quality, others have found that the opposite is true. It is important for individuals who are experiencing alcohol withdrawal symptoms to seek medical advice to ensure their safety and well-being.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ALCOHOL
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2936493/
[3] https://pubmed.ncbi.nlm.nih.gov/9380792/