A mattress can be one of the hardest things to buy so Consumer Reports tested a dozen queen-size foam and innerspring mattresses, ranging in price from less than $500 to nearly $2,000.

Chris Regan with Consumer Reports says, "Body support is our most important test. We map the natural curve of the spine for a range of people."

Then testers record how well each mattress maintains that curve when sleeping on your back. Testers also check how well your body is supported when sleeping on your side.

In another test, an increasing amount of weight is applied to the mattress to check for firmness. Many of the mattresses tested aren't as firm as they claim.

And this test checks for durability - rolling a heavy weight over each mattress 30-thousand times.

Consumer Reports also cut open the mattresses to inspect the construction. It turns out you don't have to spend a fortune to get a great mattress.

Chris says, "Higher-priced frills like additional coils or fancier fabrics really don't guarantee a better mattress."

Consumer Reports named three queen-size mattresses that cost under a thousand dollars Best Buys. For innersprings - this Simmons Glover Park from Sears for $780 and this Serta Perfect Sleeper Elite from Macy's for $835.

For foam mattresses - this Novaform Serafina from Costco. It comes in this box. You just roll it out, and it's ready for you to get a good night's sleep. The cost $900.

Consumer Reports says its ratings are a place to start, but it's best to try out a mattress in the store. If you can't do that, check the return policy carefully and make sure there are no restocking fees. While you can't try out the Costco mattress, you can return it for free if you don't like it, and there is no charge for pickup.