Casper Essential 2025 Foam Mattress review

Casper’s Essential 2025 is a distinct, earlier Casper foam mattress generation—not a synonym for The One, Cloud One, or the archived Element Mattress. This assessment is based on Casper’s exact 2025 product page preserved from April 2026 and the maker’s current sitemap. The live Essential model URL now redirects to Casper’s general mattress collection, so the captured product details do not prove there is a current offer, size selector, or available stock.

The 2025 name marks a real construction change

The archived Casper page describes this model as three foam layers: a breathable Breathe Flex layer for support and pressure relief, a Breathe Foam layer for airflow and softness, and a firm Casper Core base. Casper calls the feel Medium-Firm and gives no numeric firmness score in the exact page. Treat that as Casper’s label, not a number that can be translated onto another maker’s scale.

The product FAQ makes one useful generation distinction: it says the previous Essential used Breathe Flex Foam and Align Memory Foam in its comfort layers, while Essential 2025 uses Breathe Flex Foam and Breathe Foam. That is enough to keep the 2025 page separate from the older Essential; it does not identify the older model’s full SKU set or justify transferring specifications between generations. I keep the optional upgrade separate, too: the archived page offers an “Add Max Technology” control and describes three extra support zones plus three inches of cradling foam, but it does not identify a separate selector, size-level codes, completed package, or resulting overall profile. Do not assume those upgrade details are part of the standard 11-inch plan.

One medium-firm, 11-inch plan

Casper’s archived page lists a single standard 11-inch Medium-Firm configuration in Twin, Twin XL, Full, Queen, King, and California King. It gives no Split King selection. The stated dimensions are Twin 38 × 75 × 11 inches; Twin XL 38 × 80 × 11; Full 53 × 75 × 11; Queen 60 × 80 × 11; King 76 × 80 × 11; and California King 72 × 84 × 11. The same page lists respective mattress weights of 37, 39, 51, 60, 77, and 76 pounds. These are manufacturer specifications from an archived page, not new measurements; check the size label and the actual product code if a current seller offers one.

The archived ProductGroup assigns separate size-level SKUs: ESSTMATTWIN, ESSTMATTWXL, ESSTMATFULL, ESSTMATQUEEN, ESSTMATKING, and ESSTMATCALKING. Only Twin has a GTIN in that capture. Those identifiers help distinguish the 2025 edition; they are not Amazon ASINs and do not confirm an offer today.

Setup and warranty evidence is narrow

The exact archived product page recommends letting the mattress expand for at least 24 hours and says its polyurethane foams are CertiPUR-US certified. It names a five-year limited mattress warranty, but the full eligibility rules and exclusions were not resolved in this assessment. The inspected Essential page does not establish slat spacing, box-spring approval, adjustable-base compatibility, a sleep-position recommendation, or a body-weight limit. Check the manual and the chosen frame before building the rest of the bed around the 11-inch profile.

The archived offer was final sale

Casper’s April 27, 2026 product-page capture marked its direct offer “Final Sale” and stated that it came with no trial, returns, or exchanges, was sold online only, and was available while supplies lasted. Those terms describe that archived direct offer, not an unknown current listing or another seller. Casper’s current sitemap still names Essential 2025 in its Clearance section, but the exact live product route redirects to the broader mattress collection and the current Clearance capture does not show a specific Essential listing. Neither a sitemap entry nor a redirect proves current stock or discontinuation.

For that reason, treat this as an earlier-model comparison rather than a confirmed checkout recommendation. Verify the full model name, exact size code, seller, package, final-sale status, warranty, and return route in the live offer. An exact-model search can help locate a listing, but it is not evidence that a result is the same generation. No current price, availability, customer rating, hands-on use, or independent test result is claimed here.