A: How fragile is your mattress?
A: Definitely but what we did for our glass items was put cardboard around it and then placed the bubble wrap around it for extra padding/protection.
A: Ask someone at the store. I have no idea.
A: YES, we wrapped our grandson item including glass doggie door for his move to Chicago. Nothing broke
A: I've wrapped glass from my iron and glass coffe tables and end tables as well Picture frame's & Mirror's- as a additional precaution I've taken cardboard boxes and broken down and made to fit to what I'm bubble wrapping. I've never had anything broken. With moving and transporting you don't know what jarring that might happen.
A: For transport? Maybe. It'll protect adequately against ordinary bumps and dings, but not against getting hit with force by something hard or against the stress of being put underneath something heavy.
A: This is manufactured in the USA.