The Firmest, Purest Sleep You’ll Ever Have
Handmade in the USA from 100% Organic New Zealand Wool, the Boulder Firm Mattress delivers uncompromising support for stomach and back sleepers — with no chemicals, no springs, and no motion transfer. Naturally hypoallergenic, temperature regulating, and built to last, it’s the firmest and most supportive mattress we make.
Why Sleepers Love It:
Our wool comes from sheep raised on lush, rotating pastures in New Zealand, where they are never exposed to harmful chemicals. This premium wool is naturally insulating, moisture-wicking, and breathable — ensuring year-round comfort while resisting allergens and microbes.
Place your mattress on a slatted bed frame (with slats no more than 2"–2.5" apart), a box spring, or directly on the floor. Wider slats may affect comfort and durability.
Firmness Level: Extra-firm — the most supportive sleep surface we offer.
Best For: Stomach and back sleepers, or anyone seeking maximum firmness with pure, natural materials.
Sleep pure. Sleep supported. Sleep on a mattress made the way nature intended. 🌟
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Standard Mattress Sizes & Weights
Lower weights generally reflect a Latex Core or Evergreen Foam Core mattresses, while higher weights are more typical of a Boulder Style (extra firm) mattress. As all White Lotus Home products are unique, all dimensions and weights are approximate. A variation of up to 1" in all directions is appropriate.
| Mattress Style | Dimensions | Weight |
|---|---|---|
| Twin 6" Mattress | 39 x 75 x 6" | 70 - 80 lbs. |
| Twin 7" Mattress | 39 x 75 x 7" | 75 - 85 lbs. |
| Twin 8" Mattress | 39 x 75 x 8" | 75 - 90 lbs. |
| XL Twin 6" Mattress | 39 x 80 x 6" | 75 - 85 lbs. |
| XL Twin 7" Mattress | 39 x 80 x 7" | 75 - 85 lbs. |
| XL Twin 8" Mattress | 39 x 80 x 8" | 85 - 95 lbs. |
| Double/Full 6" Mattress | 54 x 75 x 6" | 85 - 95 lbs. |
| Double/Full 7" Mattress | 54 x 75 x 7" | 90 - 100 lbs. |
| Double/Full 8" Mattress | 54 x 75 x 8" | 95 - 115 lbs. |
| Queen 6" Mattress | 60 x 80 x 6" | 105 - 120 lbs. |
| Queen 7" Mattress | 60 x 80 x 7" | 110 - 130 lbs. |
| Queen 8" Mattress | 60 x 80 x 8" | 120 - 135 lbs. |
| King 6" Mattress | 76 x 80 x 6" | 145 - 165 lbs. |
| King 7" Mattress | 76 x 80 x 7" | 155 - 175 lbs. |
| King 8" Mattress | 76 x 80 x 8" | 160 - 180 lbs. |
| Cali-King 6" Mattress | 84 x 72 x 6" | 145 - 165 lbs. |
| Toddler Mattress | 28 x 54 x 3.5" | 20 - 30 lbs. |
Review Frequently Asked Questions on Our Mattresses.
Shipping
All orders from White Lotus Home ship FREE in the contiguous United States.
If your order qualifies, our dedicated Dream Team will reach out to you at least 3 days before your tentative delivery date. To see if you qualify for our White Glove Delivery Service, click here.
Larger orders may need to ship via freight services.
Flipping Your Mattress
We recommend you flip your White Lotus Home mattress approximately every three months if placed on a slatted surface, and every month if on a solid surface (like a box spring) to avoid compaction and allow the materials to air out.
Cleaning Your Mattress
We always recommend spot cleaning our mattresses — never saturate them with any liquid. We always recommend to our customers that they add one of our Waterproof Mattress Protectors or Puddle Pads to ensure spills never get out of hand.
To spot clean, we suggest a mild solution of three parts water to one part vinegar in a spray bottle, but for particularly stubborn spills, a mild detergent is perfectly fine to add to the bottle as well.
Always ensure your mattress is thoroughly dried after a spot cleaning, either by using a hair dryer or placing it in the sun to air out.
