BioReigns CBDzzz Sleep Tincture is an extremely beneficial all-natural CBD product with Melatonin, 5-HTP, GABA and DSIP. The Delta Sleep-Inducing Peptides (DSIP) are well-known neuromodulators with natural, sleep-promoting physiologic benefits. Typically found in the brain, DSIP easily passes the blood-brain barrier. Our water-soluble sleep tincture is clean, pure, and more bioavailable than any CBD oil product. CBDzzz can be taken under your tongue or simply add it to a beverage 20 minutes before bedtime. It can help you fall asleep faster, while ensuring a deeper sleep, leaving you more rested and attentive, without grogginess.