Beautyrest Silver BRS900 Medium Firm review

A distinct Silver BRS900 plan, with two source discrepancies

Beautyrest's current U.S. page names the Silver BRS900 Medium Firm as a single comfort plan and lists a profile of 11.75 inches. Costco's separate product page identifies the same named mattress as a 12-inch Medium-Firm item, but its specification table calls the feel Medium and the height 12 inches. Those are real differences in published labels: this assessment keeps Beautyrest's exact “Medium Firm” plan for the feel filter and retains the more precise 11.75-inch maker value for the numerical height filter, while showing Costco's rounded title and separate field. It does not invent a second comfort choice or pretend the two sources use a shared firmness scale.

The BRS900 is not the same mattress as the 12-inch Beautyrest BR800 Medium. Beautyrest identifies a 900 Series Pocketed Coil support system in the Silver BRS900 and an 800 Series system in the BR800. Costco's BRS900 feature list adds 1.25 inches of AirFeel foam, 0.5 inches of Firm Comfort foam, 1 inch of Medium Comfort foam, Gel Memory Foam Lumbar Support and an 8-inch 900-density pocket-coil support layer. That listing is useful for distinguishing this model's stated recipe. It does not give a complete construction diagram, and those listed depths do not account for the entire height; no missing material or layer total is inferred.

Feel and sleep-position evidence

The official page calls the feel Medium Firm and describes DualCool technology and gel-memory-foam lumbar support. Costco's title also says Medium-Firm, though one of its fields says Medium. Beautyrest does not give a numeric firmness score, body-weight range or direct position recommendation for the BRS900 itself. Its page contains general comfort advice, but the reviewed materials do not make a model-specific recommendation for side, back or stomach sleeping. The finder therefore does not claim this mattress satisfies a sleep-position or body-guidance requirement. “Medium Firm” is the maker's label; it is not evidence that a particular sleeper will be comfortable or receive a medical benefit.

Beautyrest's official product page lists Twin, Twin XL, Full, Queen, King and California King. Costco publishes Queen dimensions of 60 by 79.5 by 12 inches and a Queen weight of 84.15 pounds. Those are retailer-listed specifications; they do not erase the manufacturer's 11.75-inch profile. If height is tight under a headboard or in a bunk-like frame, measure the entire installed stack and check the exact seller's selected configuration rather than relying on rounded names. The product pages do not establish size-specific retail SKU identifiers in the captures.

Adjustable-base note and buying terms

Costco's exact product-page description includes “Adjustable Base Compatible.” That is a useful positive piece of model-specific retailer evidence, and it is why this plan can pass the site's adjustable-base filter. Beautyrest's own page does not identify a compatible base model, size limitation, angle range or warranty condition. Treat the phrase as a listing claim to verify against your exact base and size, not as proof that every adjustable platform or split configuration will work. Costco also offers a box spring badge on the page, but the availability of that separate accessory is not proof it is included in the mattress-only purchase.

Beautyrest's direct model page displays a 100-night trial and a 10-year warranty. Costco's page separately describes a 10 Year Limited Warranty, white-glove/threshold delivery information and general returns subject to exceptions. The manufacturer's direct trial should not be transferred to a Costco purchase, and no fixed Costco return-pickup fee or trial duration was confirmed. Check the actual seller, delivery area, room setup/removal, trial start and end, return eligibility/fees, warranty exclusions and base instructions before ordering. These terms may differ by seller and can change.

When to keep the BRS900 in the comparison

This Silver model belongs on a shortlist when the exact Beautyrest Medium Firm label, 900-series pocketed coils, listed standard sizes and the product-page adjustable-base statement align with the setup you are checking. Its maker-reported 11.75-inch profile may matter in a height-limited space, but Costco rounds that to 12 inches, so the clearance question deserves direct confirmation. It is a poor evidence match if you require explicit position guidance, a body-weight suitability claim, a numeric firmness test, a model-specific return fee or an approved named adjustable base; the examined pages do not supply those answers.

The official image is a staged photograph of a Beautyrest Silver mattress with the brand badge visible. Its bed frame and room styling are not included-product evidence. No independent comfort, cooling, durability or motion test was performed for this review; it summarizes the documents and distinguishes seller and manufacturer claims. A related alternative is the 12-inch BR800 Medium assessment, which uses an 800-series coil description, a simpler Medium label and no confirmed base-compatibility statement in the exact pages checked. For the wider context, see the guides to firmness and position wording, base fit and trial, returns and warranty terms.