Replacing an expensive year old individual coil mattress that was already sagging is an annoying way to spend money. I decided to take a chance on a latex foam mattress.  It doesn't look or feel luxurious but so far it has relieved the neck and back pain I had been waking up with with my old mattress. It didn't release any stinky fumes that I expected and inflated to size within 24 hours. The mattress isn't super thick so the bed is lower which my senior cat appreciates. The mattress has her stamp of approval although my husband is holding off on his opinion so far as we've only slept on it for a week....fingers crossed that the firmness stays.