A contribution by VJ9
Inspired by DBZ's healing pods, many sounds went into this. In the bass is a 1hz "lethargy" binaural harmonic, and a ship rumble. In the mid-range there are many water and bubbling noises, along with a 50hz hum and a variety of sci-fi synth noises. In the high register there is a breathing sound and some electronics noises as if from a monitor.
(animation: 4x sb. turn brown slider off to stay more alert, turn it up for a nap.)