After a lot of research and seeing a lot of poor quality spring mattresses in the $200-400 range, we bought these for our kids' bunkbeds- I am so glad we did. They are light- so easy to lift onto top bunk, but just as comfortable as the brand name memory foam mattress we have for the grown ups in our house... Our kids are very happy and tell us that they think the bed is really cozy. Since our kids are still little we have put a mattress protector under the sheets, but they don't seem to notice. I have taken a nap on one of the mattresses and founf it to be very very comforatble. The boxes arrived in less than a week (UPS) and we opened them immediately to let them unfold and "off gas", and set them up the next day. Overnight the light smell had dissipated and the mattresses were completely uncurled. We are very very happy with our purchase and will consider these mattresses again- they are not cheap, but much more affordable than Tempurpedic and lighter as well. We think they are worth the price.