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OSO Mattress

OSO Mattress


Not all foams are created equal


Latex Layer

1.5’’ of premium Talalay latex goes through a careful washing process so it won’t irritate sensitive skin. Plus, it’s naturally hypoallergenic, dust-mite resistant, and free of harmful chemical emissions.

Float Layer

1.5’’ of RevTechTM foam sets you up to float into dreamland. This layer is designed in tandem with the top latex layer to be breathable, cool, and promote air flow.

DreamCell™ Foam Springs

More durable than spring coils and the secret sauce to the comfort of OSO mattresses, our dream cells are crafted from pillowy latex for high durability and comfort.

RevTech™ Foam

Many foams are unfortunately a source of harmful chemicals, but our 6’’ RevTech™ support layer is free of heavy metals, formaldehydes, VOCs, and without dangerous off-gassing.

Top Knit

This impossibly soft gray waterfall cover zips off and can be dry cleaned.


Change your mind as often as you want

The OSO mattress stands out from the crowd because we give you both a soft and firm option in the same bed. Since your pressure points are concentrated in between your shoulders and hips, we zero in on the support in those areas. Simply rotate the bed 180 degrees to find your preference.

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Product Details

Size & Dimensions

38" x 74" x 9" (35 lbs)

38" x 80" x 9" (38 lbs)

54" x 74" x 9" (50 lbs)

59" x 80" x 9" (59 lbs)

76" x 80" x 9" (76 lbs)

72" x 84" x 9" (76 lbs)

Materials & Construction

  • We are committed to maintaining a 2 lb density or higher in our foams to ensure durability.
  • Fabric made in South Carolina.
  • 1.5” of premium Talalay latex with a 14-16 ILD range and 3 lb density, made in the USA.
  • 1.5” of 2 lb pcf foam, made in the USA.
  • 6” of 2 lb pcf RevTech foam made in the USA.
  • DreamCell foam springs have 4 and 5 lb natural latex


We think the USA makes great materials for beds—that’s why we design, create, and manufacture from our offices and manufacturing facilities in Michigan, New York, and Massachusetts.


  • Q: How cool is this mattress?
  • A: This mattress is designed to promote optimal temperature regulation, and that includes lots of breathability—which means a cool sleep!
  • Q: Do I need a box spring?
  • A: Nope, you can put this mattress right on the ground if you want. You can also use a slatted bed base, pallets, or even a rigid box spring if you prefer your bed off the ground.
  • Q: Is the bed split left/right or head/foot?
  • A: Head/foot. Just rotate the mattress for a different level of firmness!
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Average Rating:
32 reviews
5 star
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1 star

11-15 of 32

04:29 PM
Sweet sleeping!
I'd forgotten the experience of a true, undisturbed 7-8 hours of sleep! But I have it most nights on our new OSO mattress. My shoulders sink right in given being a side sleeper and I'm totally acclimated to the soft side. Very happy with the experience!
02:14 PM
Perfect bed for all ages
We purchased this bed for our toddler daughter as her "big girl bed", and not going to lie, we are all a bit jealous of her at this point! It is so soft, but just firm enough for a toddler! It is actually also perfect for cosleeping, not to firm or too soft. We have another bed made by a similar company and this one wins by a mile. Recently my mom came over and layed in the bed saying her back hurt. After getting up she felt so much better she literally ordered the bed the next day! Big fans over here...clearly ;)
09:48 PM
Woah, Best sleeps ever
I've had probabaly 7 different mattresses in my life and this has been the greatest! I wake up feeling refreshed and not sore like I'm used to. It's quite an upgrade! Thanks Oso!
07:53 PM
Amazing Comfort and Value
The OSO mattress is extremely comfortable - it is nice and soft yet still supportive. I like the removable/washable cover, which will make it much easier to clean when needed. I would highly recommend trying one and would not hesitate to buy another the next time I need to replace or upgrade a mattress!
07:03 PM
Two Thumbs Up
This is a great mattress. This is my second foam concept mattress. I will never go back to the traditional box-spring style. It really provides support where it is needed most. I would highly recommend.

11-15 of 32

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