The Cal King-Sized Serta iComfort CF3000 Medium Mattress boasts a number of impressive features, including a comfort rating of four. This mattress is perfect for back and side sleepers alike. However, I wouldn't recommend this mattress for stomach sleepers, who typically require a much softer sleeping experience.

The Cal King-Sized Serta iComfort CF3000 Medium Mattress is well worth the asking price, with Carbon Fiber Memory Foam and Ultra Cool PCM for support. Carbon Fiber Memory Foam channels heat away from your body and provides much-needed support to your back and neck. Ultra Cool PCM is a phase change material that provides a cooler sleeping surface, making it possible to fall asleep faster with less tossing and turning throughout the night. Together, these foams make for a long-lasting and versatile sleeping experience.

In addition to its many benefits, the Cal King-Sized Serta iComfort CF3000 Medium Mattress includes a StabL Base Foundation. This optional foundation utilizes a V-shaped construction that isolates the impact of movement, making it that much easier to share your mattress with a sleeping partner.

For another bonus, the Cal King-Sized Serta iComfort CF3000 Medium Mattress has a Max Cool Cover. This cover is made from high-performance fibers that deliver an instant burst of cool-to-the-touch sensation.

Finally, the Cal King-Sized Serta iComfort CF3000 Medium Mattress has a CertiPUR-US Certification. This certification simply proves the mattress has been through a rigorous, independent testing process and met or exceeded expectations.

In conclusion, the Cal King-Sized Serta iComfort CF3000 Medium Mattress is a great choice for back and side sleepers alike. For many nights of exceptional comfort, consider adding the Cal King-Sized Serta iComfort CF3000 Medium Mattress to your guest room, bedroom, or living space today.