Dietary Supplement. Contains No Stimulants. Liquid Collagen. Maximum Absorption*. 30 Day Supply Tropical Oasis Sleep a Weigh helps your body rebuild muscle, increase metabolism, and fight aging, all while you sleep! Collagen is a structural protein that forms your body s connective tissues including tendons, ligaments, muscle, and cartilage, which your body repairs and rebuilds while you sleep. It is also a nutrient that helps give additional thickness and strength to your skin, hair and nails. Additional thermogenic ingredients L-carnitine and L-lysine help boost metabolism. Studies have shown that thermogenic ingredients may increase.