by Quick answer: The Level Four is the plushest, tallest trim in Beautyrest's World Class line — a comfort upgrade over the Level Three, not a support upgrade. If you're a lighter side sleeper who wants extra hug, it's worth a look; if you want a more predictable buying experience with a real trial period, we point most shoppers toward the Saatva Classic instead.
- 16.25 inches tall — the tallest, softest trim in the World Class lineup, per Mancini's Sleepworld and US-Mattress
- Same 1000-density Pocketed Coil base as the Level Three, plus double the SurfaceTouch gel memory foam
- Best suited to side sleepers under roughly 200 lbs; back and stomach sleepers should lean toward the firmer Level Three
Updated July 2026 · Reviewed for accuracy
The Beautyrest World Class Level Four Plush Pillow Top sits at the soft end of a lineup that runs from firm to seriously cushioned. It's not a new mattress so much as a taller, plusher version of the Level Three — same coil system underneath, a lot more give on top. That distinction matters more than the marketing copy suggests, and it's the whole story of this review.
What the Level Four Actually Changes
Start with what stays the same: the support core. Per Mancini's Sleepworld and US-Mattress, both the Level Three and Level Four run on the same 1000-density Pocketed Coil system — Beautyrest's mid-tier individually wrapped coils. That means the underlying support profile of the mattress doesn't change between trims. What changes is everything stacked on top of it.
The Level Four adds Beautyrest's World Class Relief HD foam and, notably, double the SurfaceTouch gel memory foam found in the Level Three, all topped by a genuinely tall plush pillow top — 16.25 inches of total mattress height, per the retailers cited above. That's the tallest, softest configuration in the World Class range. In practice, this is a plushness play: more cushioning, more sink, more contour at the shoulders and hips, with the coils doing the same job of holding your spine level that they did in the Level Three.
Construction: Coils, Foam, and the Pillow Top
Layer by layer, the Level Four's story is about what's added above an unchanged base:
- Support core: 1000-density Pocketed Coil system — identical to the Level Three, according to Mancini's Sleepworld.
- Transition layer: World Class Relief HD foam for pressure distribution.
- Comfort layer: Double the SurfaceTouch gel memory foam versus the Level Three, which is the main driver of the extra plushness.
- Top layer: A tall plush pillow top that pushes total mattress height to 16.25 inches.
If you've read our Beautyrest World Class Level Three review, this will sound familiar — because it's largely the same mattress with a thicker comfort stack bolted on. That's not a knock. It's just useful to know you're paying for plushness here, not a different support system.
Who It's Actually Right For
A taller, softer pillow top isn't universally better — it's a fit question. Based on the construction details above, the Level Four makes the most sense for side sleepers, and specifically lighter side sleepers, roughly under 200 lbs, who want more cushioning at the shoulder and hip without changing how the mattress supports the rest of the body.
Back and stomach sleepers, and heavier side sleepers, are generally better served by the firmer Level Three. Because the coil support layer is identical across both trims, going up to the Level Four buys you softness, not additional support — so if your priority is a mattress that keeps your hips from sinking too deep, the extra plush layers work against you rather than for you.
Level Four vs. Level Three: Side by Side
| Feature | World Class Level Three | World Class Level Four Plush Pillow Top |
|---|---|---|
| Support core | 1000-density Pocketed Coil | 1000-density Pocketed Coil (same) |
| SurfaceTouch gel memory foam | Baseline amount | Double the Level Three's amount |
| Pillow top | Shorter, firmer profile | Tall plush pillow top, 16.25 inches total height |
| Best for | Back and stomach sleepers, heavier side sleepers | Lighter side sleepers who want more cushioning |
Don't Confuse It With the Black Series Four
One mix-up we see constantly: shoppers searching "Beautyrest Level Four" land on the Black Series Four instead. They're not related. The Black Series Four is Beautyrest's flagship line — a 17.25-inch mattress built around 4K nano coils and a latex comfort layer, and it sits in a completely different price tier from the World Class Level Four, per Mancini's Sleepworld and US-Mattress. If you're comparing plush feels across the Beautyrest catalog, our Beautyrest Black Ultra Plush review and our Beautyrest Black L-Class Medium review cover that flagship tier directly, and our Beautyrest Hybrid Plush review looks at another mid-tier plush option outside the World Class name. Worth a skim before you commit to a specific trim.
Where to Buy and What to Expect
Beautyrest is a retailer-distributed brand, which changes how you should shop it. Mancini's Sleepworld and US-Mattress both carry the World Class Level Four, but pricing, trial policies, and return terms are set by the individual retailer, not by Beautyrest nationally. The one constant we found across retailers is the manufacturer's warranty — per the manufacturer's warranty page, that coverage travels with the mattress regardless of where you buy it. Everything else — what you pay, how long you can test it at home, what happens if you don't like it — is negotiable by store.
That retailer-by-retailer variability is exactly why, for shoppers who want a simpler, more standardized buying process, we tend to point people toward a direct-to-consumer brand instead.
A Good Mattress, But We Tend to Recommend Saatva
The Beautyrest World Class Level Four is a good mattress for the right sleeper — plush, tall, and built on a support core that Beautyrest has used across multiple trims. But because pricing and trial terms shift by retailer, we tend to recommend the Saatva Classic as the more consistent alternative.
If you buy through links on this page, we may earn a commission at no extra cost to you.
The Saatva Classic is built as a coil-on-coil design: pocketed support coils, a micro-coil comfort layer, and a 3-inch Euro pillow top, with dedicated lumbar-zone support built into the coil layout. Where the Beautyrest World Class line only really moves on plushness between trims, the Saatva Classic gives you three actual firmness choices — Plush Soft, Luxury Firm, and Firm — so you're picking a genuinely different feel rather than just a taller topper. It's sold direct, with a real home trial and a lifetime warranty backing it, plus free white-glove delivery that includes hauling away your old mattress. Saatva is also handcrafted in the USA and is among the best-selling online luxury innerspring brands, and it offers flexible financing if you'd rather spread out the cost.
See current pricing and firmness options: Check the Saatva Classic
If You Want a Lower-Cost Coil Hybrid Instead
If the Level Four's price point is more than you want to spend and Saatva's luxury positioning is also more than you need, the Sweetnight CoolNest Hybrid is worth a look as a budget coil hybrid. It uses zoned pocket coils paired with Sweetnight's dedicated CoolNest cooling system, which the brand rates as noticeably cooler than a standard foam layer, plus reinforced edges and CertiPUR-US certified foams. It ships with a home trial and a limited warranty, and it's built and priced for shoppers who want a hybrid feel without a luxury price tag. We break it down further in our Sweetnight CoolNest Hybrid review.
The Verdict
The Beautyrest World Class Level Four Plush Pillow Top does exactly one job well: it takes the Level Three's coil support and buries it under a lot more cushioning. If you're a lighter side sleeper who wants that hug, and you're comfortable navigating retailer-by-retailer pricing and trial terms, it's a reasonable buy. If you'd rather have a firmness choice, a standardized trial, and a lifetime warranty in one place, the Saatva Classic is the mattress we'd point you to first — and the Sweetnight CoolNest Hybrid if budget is the deciding factor.
Prices at a Glance
| World Class Level Four Plush Pillow Top | $1,679 street / $1,879 list (queen, Sleepworld) |
| Sweetnight CoolNest Hybrid | $499.99 queen (list $666.99, 25% off) |
Prices as observed July 2026 at the retailers and brand sites named in this article; every figure above appears in our source research. Promotions rotate - always confirm on the linked product page.
FAQ
Is the World Class Level Four firmer or softer than the Level Three?
Softer. Per Mancini's Sleepworld and US-Mattress, both trims share the same 1000-density Pocketed Coil support base, but the Level Four adds double the SurfaceTouch gel memory foam and a taller plush pillow top, making it the plushest option in the World Class line rather than a firmer one.
How tall is the Beautyrest World Class Level Four?
It measures 16.25 inches total, according to Mancini's Sleepworld and US-Mattress — the tallest profile in the World Class lineup, driven mainly by its thicker pillow top and added gel foam rather than a taller coil unit.
Is the Level Four a good fit for side sleepers?
Generally yes, especially for lighter side sleepers around or under 200 lbs, since the extra plush layers give more cushioning at the shoulder and hip. Heavier side sleepers, and back or stomach sleepers, are typically better matched to the firmer Level Three.
What's the difference between the World Class Level Four and the Black Series Four?
They're different product lines entirely. The World Class Level Four is a mid-tier plush pillow top on a 1000-density coil base, while the Black Series Four is Beautyrest's flagship line, built at 17.25 inches with 4K nano coils and a latex comfort layer, and priced well above the World Class tier, per Mancini's Sleepworld and US-Mattress.
Where can I buy the Beautyrest World Class Level Four?
It's stocked at retailers including Mancini's Sleepworld and US-Mattress. Because Beautyrest is retailer-distributed, pricing, trial length, and return policies vary by store — the manufacturer's warranty is the one term that stays consistent no matter where you buy it, per the manufacturer's warranty page.
OUR VERDICT
The Level Four is the right Beautyrest for soft-seeking side sleepers , but at this money the Saatva Classic’s coil-on-coil build, 365-night trial and lifetime warranty are the stronger buy.
OUR RECOMMENDED ALTERNATIVE · UP TO $600 OFF
Saatva Classic
- Coil-on-coil construction with lumbar-zone support , 3 firmness options
- 365-night home trial , lifetime warranty
- Free white-glove delivery with old-mattress removal
