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Wolfson, A
If you use sterile water, it should be used within 24 hours
Timeline of benefits: DSIPs sleep benefits become apparent in a matter of hours, as in a 1981 study in which subjects reported sleep pressure (the feeling of needing sleep) within 130 minutes of intravenous administration.13 According to some, users experience deeper, more restorative sleep in the first few weeks, if not days, of use
doi: 10.3389/fpubh.2022.980754 37
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