Can hydrotherapy really improve sleep?

[MatthewTug]

One thing I've noticed there's many mixed ideas online, so I want to learn from people who have actually owned one of these long term. Thinking back, was there anything you would approach differently if you were do it again right now? Those kinds of advice is often the most helpful.
 
https://www.tumblr.com/southwestspasaz/803688932980260864/hot-tub-water-chemistry-explained-for-desert
 
How much did you actually spend after installation? 24034b7