Beautyrest Harmony Carbon Lux Medium Mattress

Beautyrest® Harmony Lux™ Carbon Series features our latest innovations in support, comfort, and cooling; that work together in harmony for a better night’s sleep. Its new and innovative coil design and support system, advanced pressure relieving foams, uniquely engineered cooling technologies and exclusive sustainable fabric technology makes this collection the ultimate choice in premium bedding.

  • Featuring our RightTemp™ Wave Foam, our Harmony Lux™ Carbon Series sleeps cool and comfortable all night. 
  • Our Precision Support System™ powered by T2 Pocketed Coil™ Technology provides additional support where you need it most.
  • Sustainable and cool sleeping InfiniCool™ Lux provides a cool sleep environment and Seaqual™ Fabric Technology utilizes recovered plastics from the ocean to create a durable and luxurious fabric.
  • Pressure relieving comfort Beautyrest® Gel Memory Foam and RightTemp™ Wave Foam work together to create incredible pressure relief.
  • Adjustable Compatible
  • 10 Year Warranty
Customer Reviews
4.8 Based on 30 Reviews
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    This is nothing like in store feel

    I had a beautyrest mattress for over 16 years that I absolutely loved. Unfortunately when I moved I let it go. I just received my matress and it feels nothing like it was in store. It feels hard and stiff when you lay on it. I have the medium. I've never laid on any bed this uncomfortable in my life you'd expect a soft feel with a new bed. At the store it felt similar to my old beautyrest bed. Im highly disappointed spent almost 2,000 dollars. What happened to quality? It even appears the foot and head of bed are higher than center. Shouldn't matresses be uniform in shape? Even after 16 years my previous mattress kept its original shape. Reading other reviews I see I'm not the only one whose had a horrible experience.


    Very happy with thie mattress!

    Back in 2015 I was gifted a queen size Beautyrest Recharge World Class Contender firm mattress. A few months ago I decided to upgrade to a king size Beautyrest mattress but I had no idea what I needed because the Recharge series is no longer made. I reached out to Beautyrest and asked them if they could help me find a similar mattress in king size and they recommended the Harmony Lux Carbon series-Extra Firm-Classic Top. It has been about a month and a half since the mattress arrived and I love it. It is exactly the right amount of firm and although I am primarily a side sleeper, this mattress gives me a great night's sleep.


    Best sleep yet

    I absolutely love my new mattress. It has the perfect support and comfort I need. No more waking up in pain and finally getting a good nights rest


    Really comfortable

    I have had this mattress for a few weeks now and I’m really impressed with how comfortable it is. I guess I didn’t realize how bad my previous mattress was until sleeping on this one for a few nights. It’s really supportive in all the right places and I wake up feeling refreshed and rejuvenated. I’ve also noticed my hips and back have felt a lot better since making the switch. I can’t speak to long term wear and comfort, but so far I’m impressed.


    Best mattress ever

    I was in an accident a few years ago and ever since I've had trouble sleeping. I just could not seem to get really comfortable at night. My husband and I purchased this mattress and it was one of the best investments I've ever made. I love that this mattress is extra firm and provides lots of support. I am sleeping better at night and waking up less often! Definitely worth the price! I would recommend this mattress to everyone!