[Din]

clean the glass with some sanitizer. The white powder happens...it's from the lamps. just clean the glass and you're good to go. Rubbing alcohol also works....use a cleaning towel and put your back into it. Don't be tossing $80/glass just cuz there is some residue stuck on it. use your finger nail through the towel to scrape that stuff off.

I've heard lots of people quote what a bed should read, but hardly see people match those numbers too often. You'd have to rebuild the entire bed to get it to perform like new again. Not worth it.