Best Waterbed Mattress of 2019 July 29, 2019 by sleepsherpa A waterbed mattress is more than 3,000 years old. Today, this type of mattress has undergone huge transformation. Know which ones are the best on the market. Total 0 Votes 0 0 Tell us how can we improve this post? Captcha: + = Verify Human or Spambot ?