Overall Mattress Height — Tight Top/Plush: 11.5”

Made in the USA
Made in
the USA
12-Year Non-prorated Warranty
Non-prorated Warranty


  • Premium comfort foams include high density memory foams and/ or pure latex for superior support and comfort.
  • High density foams use our Comfort-lock® process and provide longer lasting support and comfort than our standard foams.
  • Engineered to articulate on adjustable beds to customize your sleep experience.

  • Comfort and support foams are crushed to minimize the initial softening and lock in the comfort, to feel like new longer.
  • Made with CertiPur-US foams made without ozone depleters, harmful flame retardants, formaldehyde and phthalates and free of mercury, lead and other heavy metals.


Key layers of the Yellowstone Mattress.

Quilt Layer
Premium Tencel® Cover
Comfort and Support Layers
3” Gel Infused Memory Foam
1½” HD Comfort Foam
Support Core
7” HD Power Foam Core

* for illustrative purposes only


Key features of the Yellowstone Mattress.

Ultra Premium Comfort
Comfort HD Foam
Comfort LockComfort Lock
Adjustable Friendly


“Thank you so much for delivering the perfect bedding at the perfect price point.”

– Iris, happy Southerland Customer