Cnidarians (Cnidaria) are a group of aquatic animals that includes jellyfish, corals, sea anemones, and hydras. The basic form of the cnidarian body is quite simple and consists of a gastrovascular cavity with a single opening through which food is ingested and waste is released.he body wall of cnidarians consists of an outer layer or epidermis, an inner layer or gastrodermis, and a middle layer or mesoglea. Cnidarians lack organs and posses a primitive nervous system known as a neural net.
14. Fish. The Vitamin B6 in many types of fish will help your body produce melatonin, without the need to take melatonin supplements. Some of the best types of fish to consume for better sleep are salmon and halibut, and there are other foods you can choose that also feature B6.
1 Healthy Fats â such as coconut oil, organic and pasture raised meats, eggs, avocado and butter all help provide your body with the necessary building blocks to manufacture sleep hormones. 2  High Antioxidant Foods â Also important for hormone production and removal of toxins that can impede sleep. Wake up and go to bed at the same time, even on weekends to keep your hormone cycle regular. 2  Eat a high protein/high fat snack a few hours before bed (7pm or earlier) or consume a lot at dinner. 3  Avoid caffeine after 1 pm.