<prompt> Human: My wife and I are planning to buy a mattress this weekend. Are there places I should avoid? Any advice? Is there a mattress buying guide you recommend? I read the one on consumer reports.edit: This sub is always so helpful. Thanks for all the replies!  <response>: Amazon. I got an awesome full-sized memory foam mattress off of Amazon for like, 200. Ive had it for almost a year and its the most comfortable mattress Ive ever slept on. 1010 would recommend, assuming you know what kind of mattress you like. Plus, it has the added bonus of coming vacuum packed in this tiny box: take the wrapping off and it expands into a full-sized bed! Id pay money just to see that! 