WebMD: Want to get the most out of your COVID-19 vaccine? Make sure you get some good rest before you get your shot, sleep experts say.

That’s because adequate sleep is an important factor in a strong immune system.

“As COVID-19 vaccines are being distributed, it is of utmost importance that patients continue to prioritize their sleep to maintain optimal health,” American Academy of Sleep Medicine (AASM) president Dr. Kannan Ramar said in an academy news release. “Getting sufficient, high-quality sleep on a regular basis strengthens your body’s immune system and optimizes your response to a vaccine.”

Several studies have found an association between sleep and vaccination response. For example, a 2020 study in the International Journal of Behavioral Medicine found that flu vaccines appear to be more effective in people who get a sufficient amount of sleep during the two nights prior to receiving the shot. Other studies have reported similar findings about patients’ response to vaccines for hepatitis A and hepatitis B.

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