Registered nurse Andrea from Frugally Sustainable explains how to make an herbal mixture to induce sleep. The powdered herbs are mixed together and placed inside gelatin capsules. Take two to four capsules about half an hour before bedtime. The herbs consist of two parts each of valerian root and skullcap; one part each of lemon balm, oatstraw and passionflower; 1/2 part rhodiola root and 1/4 part hop flowers.
Frugally Sustainable explains that empty gelatin capsules are available for purchase. A special device called The Capsule Machine can be used to fill the capsules with herbal powders, or the capsules can be hand-filled by scooping the powder into one end of the capsule, tamping it down tightly and then capping it.
According to Mayo Clinic, valerian root can reduce the amount of time it takes to fall asleep and it may improve sleep quality. It has few side effects but can cause headaches, dizziness and stomach upset. Both skullcap and lemon balm have mild sedating and calming effects, says WebMD. Lemon balm has no known side effects, but it is unknown if skullcap is safe. MedlinePlus notes that passionflower was at one point approved for sale as a sleep aid. It was taken off the market in 1978 due to lack of evidence on its safety and effectiveness.