Advil is a brand name for ibuprofen, which is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, fever, and inflammation [1]. According to SingleCare [2], ibuprofen is not known to cause sleep disturbances. However, some studies suggest that NSAIDs, including ibuprofen, can affect sleep quality. A study published in the Journal of Clinical Pharmacology found that ibuprofen can cause sleep disturbances, such as increased awakenings and decreased deep sleep [3].

It is important to note that the study was conducted on a small sample size and the results may not be generalizable to the larger population. Additionally, other factors such as pain or illness may also contribute to sleep disturbances. Therefore, it is recommended to consult a healthcare provider if you experience any sleep disturbances while taking Advil or any other medication.

In conclusion, while ibuprofen is not known to cause sleep disturbances, some studies suggest that it may affect sleep quality. It is recommended to consult a healthcare provider if you experience any sleep disturbances while taking Advil or any other medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/ADVIL
[2] https://www.singlecare.com/blog/medications-that-cause-insomnia/
[3] https://pubmed.ncbi.nlm.nih.gov/8047572/