Falling asleep while floating is perfectly safe and if you do sleep while floating, you're doing a good job! The water is so dense that you will effortlessly float allowing all the muscles in your body to relax into their natural state, relieving tension and tightness. It’s an experience you’d find hard to recreate in any other situation on earth, and it’s the closest your muscles will experience to zero gravity. So sleep away! One hour in a float tank is equivalent to 8 hours sleep while your body absorbs all the benefits of the unique environment.