Price: (as of – Details) Fall asleep fast and wake up refreshed with the Equate Nighttime Mini-Caplets Sleep Aid. This simply sleep tablet is completely safe, as it is non-addictive. The box holds 100 mini caplets, each of which contains 25 mg of Diphenhydramine HCl. The Equate Total of 400 mini-caplets in this 4 pack.