9 Best Full Size Mattress Toppers of 2026

On a full bed that has started to feel tired, the job of a topper is to replace the worn comfort layer and stay put while you sleep, and ViscoSoft's Restore HD Select is built for that. ViscoSoft rates its DensityCore gel memory foam at 3 lb and says most toppers settle for 2.0 to 2.5 lb foam that bottoms out. The foam has vertical airflow channels to move heat out, and the topper has reinforced edges, gel-lined corner straps and a beaded non-slip mesh base. The cover comes off for the washing machine. When we checked, a 3-inch full was $169.95 on sale, down from $219.95, a 2-inch full was $149.95 and a 4-inch full $229.95, with a 90-day money back guarantee and a 5-year warranty. A Full XL version suits dorm beds. The trade-off is feel: ViscoSoft describes it as medium-firm, so sleepers who want to sink in should look at Lucid, Linenspa or Bear.

Subrtex sells one of the most flexible toppers here, with 2, 3 and 4 inch versions of the same ventilated gel memory foam, each with a removable fitted cover. Subrtex describes the foam as 3.5 pounds high-density gel memory foam, says it passed a 360,000-cycle fatigue test, and lists the full at 75 by 54 inches. What sets it apart is the paperwork: a 180-day guarantee, a 10-year warranty and free express shipping for US customers. When we checked, a full cost $119.99 in 2 inches, $141.99 in 3 inches and $159.99 in 4 inches. There are a few practical notes in Subrtex's own description. The cover is washable but the foam is not, the topper needs 48 to 72 hours to expand, and Subrtex says a compressed topper has a 6-month shelf life, so it should be opened soon after delivery. Subrtex does not mention straps, so a deep-pocket fitted sheet helps keep it in place.

The TEMPUR-Adapt Topper adds 3 inches of TEMPUR-Material to an existing bed, which Tempur-Pedic says is 50% more of its material than the 2-inch TEMPUR-Cloud Topper. For a full-bed sleeper, it is a way to get the brand's pressure-relieving foam for a fraction of a new Tempur-Pedic mattress. Staytight corner straps hold it on mattresses up to 13 inches deep, and the knit cover zips off for washing and resists dust mites and allergens. The full measures 52 by 72 inches and cost $319 when we checked, with free shipping and a 10-year limited warranty. Warm sleepers can pick the TEMPUR-Adapt + Cooling version for $70 more in full. The 2-inch TEMPUR-Cloud is a cheaper way in at $154 for a full. The catch is the return policy: Tempur-Pedic says that given the personal nature of the product, it cannot accept returns, so this is a buy for people who have already slept on TEMPUR-Material and liked it.

Bear's Pro Topper is a single 3-inch layer of copper-infused memory foam, aimed at people whose full mattress feels too firm and who tend to sleep warm. Bear says the copper infusion draws heat away from the body and that the circular knit cover feels cool on contact. The full measures 54 by 75 by 3 inches, the foams are CertiPUR-US certified, and the zippered cover comes off for laundering. When we checked, a full was $211.25 with the BF35 Black Friday code shown on the page, down from $325. Bear advertises free shipping and free returns in the contiguous US. Bear is also candid about limits: its FAQ says a topper adds cushioning and support but will not fix a mattress that is sagging, and suggests a new mattress in that case. There are no straps or grip base in Bear's description, so it relies on its weight and a fitted sheet to stay in place.

Avocado's Eco Organic Mattress Topper is the pick for full-bed sleepers who want natural latex rather than memory foam. It comes in two feels: Medium, made with GOLS certified organic Dunlop latex, which Avocado suggests for back and stomach sleepers, and Plush, made with FSC certified Pure Talalay latex for side and combination sleepers. Heights are 2 or 3 inches, and Avocado lists every weight, from 18 pounds for a 2-inch Plush full to 39 pounds for a 3-inch Medium full. The organic cotton cover is sewn shut by design, and a canvas base keeps the topper from slipping. Certifications include GREENGUARD Gold, MADE SAFE, EWG Verified and OEKO-TEX STANDARD 100 Class I. When we checked, a 2-inch Medium full was $279 on sale from $349, a 3-inch Medium full $359 and a 2-inch Plush full $399, with a 100-night trial. Avocado's page cites both a 1-year and a 10-year limited warranty in different places, so confirm the term before ordering.

Lucid's Gel Memory Foam Topper is a simple, inexpensive way to soften a firm full mattress. It is one piece of ventilated memory foam, offered in 2, 3 or 4 inch profiles, and buyers choose the infusion: cooling gel, bamboo charcoal or lavender. Lucid describes a sink-in feel, says the gel pulls heat away from the body, and lists the full at 54 by 75 inches, with a Full XL also sold. The foam is CertiPUR-US certified. When we checked, a full was $62.99 in 2 inches, $89.99 in 3 inches and $99.99 in 4 inches, and Lucid was running a 25% sitewide discount applied in the cart. The trade-offs are the ones you would expect at this price. There is no cover, the topper is spot clean only, and returns must be started within 30 days of delivery, with a 3-year limited warranty. Plan to put a mattress protector over it.

Linenspa's Gel Memory Foam Mattress Topper is the cheapest way on this list to change how a full bed feels. It is a single layer of memory foam infused with gel beads that Linenspa says capture and dissipate heat, with a green tea infusion as an alternative, in 2, 3 or 4 inch profiles. Linenspa's full measures 52.5 by 74 inches, slightly inside a standard full so it fits under a fitted sheet, and Full XL and Short Queen sizes are also sold. The foam is 100% polyurethane and CertiPUR-US certified. When we checked, a 2-inch gel full was $49.99, a 3-inch $77.99 and a 4-inch $89.99. It ships free in 1 to 3 business days and carries a 3-year limited warranty. The compromises are clear: there is no cover, it is spot clean only, Linenspa publishes no foam density, and its product page does not state a return window. Linenspa itself recommends putting a mattress protector on top of the topper.

Most toppers make a bed softer, but Sleep Innovations built this one to do the opposite. Its 3 inches of resilient support foam give a medium firm feel that Sleep Innovations says is more buoyant and uplifting than memory foam, which suits a full mattress that has gone too soft. The hypoallergenic cover is machine washable, carries green tea and cool-touch fibers, and stretches to fit mattresses up to 17 inches deep, which also holds the topper in place. The full measures 73 by 52 by 3 inches and weighs 18.9 pounds. The foam is made in the USA, CertiPUR-US certified and backed by a 10-year warranty. When we checked, the full was $199.99, the lowest of its three sizes. The limits: it is only sold in full, queen and king, its product page gives no return window, and a 3-inch ViscoSoft full cost less on sale.

Birch, the natural line sold by Helix, makes its Plush Organic Mattress Topper from 2 inches of GOLS certified organic latex that it says is sourced from Sri Lankan rubber trees. Birch says the topper contains no polyurethane foams, fiberglass, pesticides or formaldehyde, that each one is hand-assembled in Arizona, and that its heavier weight helps it stay put without straps. It is GOLS and GREENGUARD Gold certified. The full measures 54 by 75 by 2 inches. Birch offers a 120-night trial with free returns, longer than every pick here except Subrtex, but only a 1-year warranty. We could not load the full-size price from Birch's store from our location, so check it at helixsleep.com before comparing it with Avocado, which publishes its full-size latex prices. For full-bed sleepers who want organic latex and the safety of a long trial, it is worth a look; for a lower price on latex, Avocado's 2-inch Medium full is the reference point.