I purchased a Plank Firm Luxe Mattress with Glaciotex (Cooling cover) due to a lower back, shoulders, and neck discomfort. I'm so glad I invested on my health by getting this Brooklyn Bedding Plank Firm Luxe Mattress after a few months of research. I also like the fact that the Firm Plank Luxe mattress is endorsed by the ACA (American Chiropractic Association) The Plank Firm Luxe mattress construction, quality materials, and outstanding comfort has tremendously improved my restless nights sleep on my neck, shoulders, and lower back. Thank you Brooklyn Bedding for making, providing, and delivering outstanding comfort and quality mattresses!! Continue on making excellent products.