This sleeping concern bothered my dad before. My dad is a late night taxi driver. Whenever he gets home he is always unable to sleep well... He will go come home at 4am after driving and at 6am, he'll go out and do his taiji even though if he needs sleep desparately,because he couldn't go to sleep at all. That's when I resorted to get a sleep therapy bed system for him. In the first place, he was quite uncomfortable with it, throat dry, abit hot to sleep in. Cause instructions were given that the "far infra-red ray" will make your body increase metabolism, water absorption rate increase.I used to disbelieve any beds, cos for the magnetic fields, you must place the bed in the right direction or whatever, else it will not be good. Haha its like feng shui! That's why I choosed a non-magnetic one. Whatever. After 2 weeks, he was able to sleep soundly, not easily disturbed by the surroundings and he's not accompanying me to go for morning exercises anymore. Is that good or bad? Haha~* well, anyway, just wanna share the experience with u all. :)