Sundown Melatonin 5 mg is a straightforward supplement, delivering a moderate and effective dose of melatonin in an easy-to-take tablet form. The 5mg dose is often a good balance for many individuals to induce and maintain sleep without being overly potent. The product offers good value at 8 cents per serving for a quality 5mg melatonin. While it is a single-ingredient product, it serves its primary purpose effectively for melatonin-responsive insomnia. Its review count is moderate, indicating a solid presence in the market.