My dear friend Heather was in her 3rd trimester when she first floated. This is what she said about the experience:

"I was eight months pregnant when I floated for the first time. Pregnancy takes a toll on every muscle in your body, especially your torso. Ironically, the times when you get a chance to rest is when the baby becomes more active and it's weight continues to put stress on your muscles.
 
While floating, I expected the baby to be very active, but was pleasantly surprised. Since there was no pressure from any side, the baby didn't feel the need to kick or roll around. It was the best rest I've had in several months. I would recommend floating to anyone, pregant or not, for a time of physical and mental renewal."

Something I noted with great interest and curiosity was the fact that of the 1000+ people who walked through the doors of our float center, men responded to the idea of floating significantly more often than women did. Before we opened, we assumed that more women would be interested in pampering themselves with a float session but we were wrong.

I don't think there was a gender bias since my wife and I both worked with the customers pretty much equally. At first I dismissed the observation by saying that men are often more adventurous than women, and since the float tank experience is very novel in comparison to most other activities, a man's sense of adventure would find the float tank a exciting opportunity for exploration.

But the more I thought about it, the more I was struck with how odd it is that women can get pregant and carry a baby in their womb. The float tank experience is very womb-like; warm, dark, wet, safe. So wouldn't it stand to reason that women would understand the float tank better than men? My wife and I saw many women react with fear to the float tank. Maybe there was a lot of men who had initial reactions of fear too, but their pride didn't allow them to show it to us. I don't know, but I think it's an interesting phenomenon. What are your thoughts?