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Sierra Mattress

Sierra Mattress
Sierra Mattress
Sierra Mattress
Sierra Mattress
Sierra Mattress

Gel memory foam provides pressure relief and contouring support in our Sierra, the best value in our memory foam collection.

Comfort & Support

Medium Firm

Our medium beds are where plush and firm make friends. This feel is great for side, stomach, and back sleepers alike, or for couples with different sleep preferences.
120-Night Guarantee
120-Night Guarantee
Free Shipping & Return
Free Shipping & Returns
Made in California
Made in California
25-Year Warranty
25 Year Limited Warranty

Main Features

Breathable Stretch Knit
Breathable Stretch Knit

A soft, 4-way stretch knit allows your body to rest easily into the comfort of your mattress without the resistance of a traditional weave.


Upholstered handles adorn the side panels of your mattress, hand-sewn for a tight fit that won’t bunch out underneath the sheets. Now you can easily move or adjust your bed without hassle.

Key Materials

Sierra Comfort

Soft gel memory foam to hug your entire body, a ventilated foam layer to keep air flowing, and a summerweight New Zealand wool liner that repels moisture to keep your mattress fresh.

New Zealand Wool
New Zealand Wool

A natural and sustainable material, the benefits of wool are endless. It wicks away moisture, acts as a natural fire barrier, and regulates body temperature, keeping you cool when it’s hot and vice versa.

Gel Memory Foam
Gel Memory Foam

Gel memory foam relieves pressure points by distributing weight evenly across the mattress. Ideal for couples, it isolates motion so you won’t disturb your partner while you sleep.

Airlux Foam
Airlux Foam

Using only CertiPUR-US certified foam, our Airlux layer allows increased airflow, keeping your sleep cool and comfortable.

Sierra Mattress Details

39" x 75" x 11"

Twin XL
39" x 80" x 11"

54" x 75" x 11"

60" x 80" x 11"

76" x 80" x 11"

CA King
72" x 84" x 11"


The Sierra combines traditional mattress craftsmanship with the comfort of gel memory foam. Simply run your fingers along the tailored tweed sides or button-tufted upholstery to feel the attention to detail. Hand-stitched tape edges and four-way stretch knit on top help you reap the full rewards of memory foam, keeping your mattress from bowing and supporting you fully every night and every morning. Most important, gel memory foam contours your entire body, with a ventilated foam layer keeping you cool. We called this our Sierra, because we were inspired by the active bodies that wake early and hike the hills around their homes. We think our Sierra will give you that bounce you need to get up and go.


  • Medium feel
  • Our medium beds are where plush and firm make friends. This feel is great for side, stomach, and back sleepers alike, or for couples with different sleep preferences.
  • CertiPUR-US Certified Gel Memory Foam adds pressure relief and sleeps cool for your comfort.
  • New Zealand wool liner wicks away moisture and is naturally antimicrobial for a cooler, fresher mattress.
  • 4-way stretch knit with a wider, cushion-quilt design complements the medium feel.
  • Handmade in our workshops right here in LA and certified free of ALL unhealthy chemicals, including harmful fire retardants, phthalates, and heavy metals.
  • 25-year warranty and 120-Night Guarantee

Technical Specs

  1. 4-way stretch knit
  2. New Zealand wool layer
  3. 1-inch QuiltFlex layer
  4. 3-inch gel memory foam layer
  5. 2-inch ventilated airflow layer
  6. 5-inch therapeutic support base

Mattress Dimensions

  • Twin: 39" x 75" x 11"
  • Twin XL: 39" x 80" x 11"
  • Full: 54" x 75" x 11"
  • Queen: 60" x 80" x 11"
  • King: 76" x 80" x 11"
  • CA King: 72" x 84" x 11"
Adjustable Base
Box Spring
Box Spring & Foundation
Slatted Base
Platform Bed

Ships Free In A Box

Brentwood Home Mattress Box

Our mattresses are handcrafted in 5-10 business days. Standard shipping takes an additional 1-5 days.

Easy Setup


Q: What does the 120-night guarantee cover?

A: When you get your new mattress, you’ll want to give your body at least 30 nights to adjust to your new mattress. Your body might not be used to such contouring support right away. But if you give it some time, and the mattress just isn’t your style, you can contact us within the first 120 days of your purchase, and we’ll arrange for a pickup of your mattress to be donated to a local charity or shelter, free of charge. Please note there is a limit of 2 items per year per household. Standard shipping costs will apply after that.

Q: How is it possible that you don’t use chemical fire retardants? Doesn’t every mattress have to use them?

A: Fortunately, it’s totally possible to avoid using chemical fire retardants with a hydrated-silica sand. Hydrated silica is basically crushed quartz and opal gemstones. We also line our mattresses with New Zealand wool, which is another natural fire barrier.



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