are there reviews of mattress brands, styles, etc

http://www.ConsumerReports.org doesn't rate individual mattresses, but they do have a lengthy and detailed buyer's guide.  They suggest the innerspring mattress for most people and they claim the memory foam has some drawbacks.  The report also states that latex mattresses are durable but expensive.

Your best bet would be with the innerspring.   Innerspring mattresses are by far the most popular type of bed, with dozens of styles, features and options available. Although prices start at about $300 for no-frills models, most experts agree that you should expect to… pay a minimum of $800 for a quality queen-size set. Reviewers say a mattress with a pillow top is usually more comfortable, but some owners report that pillow tops go flat long before the mattress is worn out. Compared to other types of bedding, innerspring mattresses tend to retain less body heat and come in a wider range of firmnesses, but they also transfer more motion, which may be a concern if you sleep lightly and share your bed with a partner. They're also less durable and more prone to sagging than foam mattresses and airbeds. Experts say innerspring mattresses should be replaced every eight to 10 years -- more often if premature sagging occurs.

When purchasing your mattress remember to read the buyers guide so you know how to properly care for it.  Some mattresses will last longer if you flip and twist them every couple of weeks.

Thanks for using IMShopping, sleep tight!

Hello and thank you for choosing IMshopping.  I have found a website that reviews all of the different mattress brands and gives you a good description of each.

Just click on the picture of the mattress below and it will take you right to the site.