The location I go to makes you wipe down the equipment while on the circuit! Meanwhile the manager, or whoever is behind the desk, doesn't do a thing but play on the computer and talk of the phone.
I had a Tempur-pedic for 15 years and never had a problem. I made a huge mistake getting rid of it when it was still in good shape. ALL beds (unless you go totally organic, non-flame-resistant, etc.) have chemicals in them. You just might be a little more sensitive to some chemicals than others. So spending + or - hours on a new mattress of any kind might cause problems due to the constant exposure. I've replaced my mattress with a bed of straw. Not really! Even totally healthy mattress have their drawbacks. Dust mites LOVE organic materials. What's a girl to do?