Better Sleep 100 is a great, cost effective waterbed. This Hardside waterbed is as wavy and free-flowing as it gets. With this full motion waterbed mattress, you will feel like you are sleeping on right on the water. Freeflow waterbeds are great for reducing pressure on the body, allowing the muscles to completely relax. For added durability and support, the corners are reinforced with extra material. The Freeflow waterbed is made using the most durable vinyl on the market today. Additionally, the study T Shell corner seam construction gives the waterbed even more support.