Purple Renew Queen Review: The Cooling Grid That Floats You — But Is It Worth $1,899?

Reviewed by James Mitchell, Senior Product Tester | MattressNut.com | Updated 2025

Night One: I Woke Up Confused (In a Good Way)

I've tested over 60 mattresses in six years. I know what a "cooling mattress" actually means versus what a brand's marketing team wants it to mean. Most of the time, "cooling" means a thin gel layer that feels cold for about 90 seconds and then traps heat like a sauna. So when I climbed onto the Purple Renew for the first time on a 97-degree Austin evening in July, I was ready to be unimpressed.

I wasn't unimpressed. I woke up at 3 a.m. having completely forgotten I was testing a mattress. That hasn't happened in a while. The GelFlex Grid. Purple's signature hyper-elastic gel polymer layer sitting 2.0 inches thick on top, does something genuinely different. It doesn't just wick heat. It doesn't compress into a hot foam pocket around your body. It flexes, buckles under pressure points, and lets air move through channels that run the entire surface of the mattress. The measured max surface temperature of 89.4°F is real. That's a legitimately cool number compared to most foam competitors that regularly hit 93-96°F in my testing setup.

At 165 pounds, I'm in the sweet spot for this mattress. The floating sensation, where you feel like you're resting on top of the surface rather than sinking into it, was distinct and comfortable. My hips didn't dig in. My shoulders got enough give. The 1.98 inches of measured sinkage is about half what you'd see on a typical memory foam mattress at this price point.

But here's the thing. Good nights and good first impressions don't tell the whole story. Over six weeks of testing, sleeping in multiple positions, sharing the bed with my partner, and running it through my full protocol, the Purple Renew revealed some real limitations that the brand's marketing won't mention. The NapLab score of 8.14 out of 10 puts it in the bottom 22% of mattresses they've tested. That's a number I kept coming back to as I wrote my notes.

What's Actually Inside the Purple Renew

The Purple Renew is an 11-inch mattress with three distinct layers. The top 2.0 inches is the GelFlex Grid, a hyper-elastic gel polymer that Purple has refined over several product generations. Below that is a poly foam comfort layer that transitions between the grid and the base. The foundation is a support foam base that gives the mattress its overall structure and height.

The GelFlex Grid is the part that matters most. It's not memory foam. It's not latex. It's a proprietary material that behaves differently under pressure, it collapses in small columns at your heaviest contact points (hips, shoulders) while staying firm everywhere else. This is what creates the "floating" sensation and also what drives the perfect 10/10 response time score. When you shift positions at night, the grid springs back immediately. There's no slow-release foam lag that keeps you stuck in one spot.

The cover is soft and stretchy, it needs to be to let the grid work properly underneath. The overall build quality feels solid. The mattress has good edge-to-edge consistency. No lumps, no off-gassing smell after 48 hours (the grid is gel polymer, not foam, so outgassing is minimal). Setup was straightforward with free shipping from Purple's website.

Where the construction falls short relative to the price is in the support foam base. At $1,899, I'd expect either pocketed coils for better airflow and edge support, or a denser, more sophisticated foam system. The poly foam layers under the grid feel adequate but not exceptional. That's part of why heavier sleepers, anyone significantly over 200 pounds, may not get the support they need. The grid does the interesting work; the foundation beneath it is fairly conventional.

The Cooling Performance: This Is the Real Deal

Let me be direct: the Purple Renew is one of the best-cooling non-hybrid mattresses I have tested at any price. The 9.0 out of 10 cooling score from NapLab aligns with my own experience. In Austin in summer, sleeping hot is not a minor inconvenience, it's a legitimate sleep quality problem. I tested this mattress during a stretch of nights where the bedroom temperature averaged around 76°F before the AC kicked in fully. Most foam mattresses I've tested in those conditions have me sweating by 2 a.m.

The Renew didn't do that. The maximum surface temperature of 89.4°F is the measured result of the grid's open-channel design. Air actually circulates through the gel columns. There's no foam envelope trapping body heat because the top layer simply isn't foam. It's a fundamentally different thermal behavior, not a marketing claim.

I also tested this for my partner, who runs warmer than I do. She's been on memory foam mattresses for years and has accepted waking up hot as just part of life. On the Renew, she stopped complaining about heat within the first week. That's not nothing. For hot sleepers, this mattress genuinely solves a real problem in a way that gel-infused foam competitors simply don't.

The cooling advantage does have a ceiling. If you're using heavy blankets or a non-breathable mattress protector, you'll partially offset what the grid does. I'd recommend a lightweight, breathable protector, something cotton or Tencel-based, to keep the thermal benefits intact. A thick waterproof protector with a polyurethane backing will trap heat regardless of what's underneath it.

The response time score of 10 out of 10 is also directly tied to the material. Gel polymer doesn't have thermal memory the way viscoelastic foam does. It doesn't get softer and slower as it warms up overnight. The mattress behaves the same way at 11 p.m. as it does at 5 a.m. For combination sleepers like me who move positions multiple times per night, this consistency matters more than most people realize.

Motion Isolation: Better Than You'd Expect From a Responsive Mattress

Here's a tension that most mattress buyers don't think about until they're lying awake at 2 a.m.: responsive mattresses tend to transfer motion. Think of a traditional innerspring, bouncy, yes, but every time your partner rolls over, you feel it. Memory foam solved this by absorbing motion, but it did so by being slow and heat-trapping. The Purple Renew tries to have it both ways.

The 8.5 out of 10 motion isolation score is legitimately impressive given the 10/10 response time. The GelFlex Grid isolates motion within its columns, pressure applied in one area doesn't ripple outward the way it does on a bouncy spring mattress. The grid buckles locally. My partner getting up at 6 a.m. while I was still sleeping barely registered. I felt a slight shift, not the full body-roll sensation I get on hybrid mattresses with lighter coil systems.

For couples, this is a genuine selling point. You get the quick repositioning feel for yourself while your partner's movements stay mostly on their side. It's not perfect, no foam-free mattress is, but it's significantly better than most hybrids at this price range.

Edge support is the weaker link here. Sitting on the edge of the Renew, I noticed more compression than I'd like. The foam base doesn't provide the same perimeter reinforcement you'd get from a coil-edge hybrid system. For people who use the full surface of their mattress or sit on the edge to get dressed in the morning, this is a noticeable limitation. I'd score it around a 7 out of 10 for edge support, functional but not a strength.

The Price Problem: $1,899 Is a Hard Sell

I wouldn't buy this mattress at $1,899. I want to be clear about that. The GelFlex Grid technology is real and the cooling performance is excellent, but the overall NapLab score of 8.14, placing it in the bottom 22% of mattresses tested, tells a story that the individual metrics don't. When you add up pressure relief, support across body weights, edge performance, and value for dollar, the Renew doesn't compete with what else you can get at this price.

The Costco price of $1,399 is a different conversation. At $500 less, the value equation improves substantially. If you have a Costco membership and you're a hot sleeper under 200 pounds, the Renew at $1,399 is worth serious consideration. The cooling and response time performance at that price is competitive with anything on the market.

The $150 return fee is also a real issue. Purple frames the 100-night trial as risk-free, but a $150 charge to return a mattress is not risk-free. It's a deterrent. At $1,899, I expect a genuinely free return, the way Saatva, Casper, and several other premium brands handle it. If you try this mattress and it doesn't work for you, you're out $150 before you've even started shopping for the replacement. That's a policy that belongs on a budget mattress, not a $1,899 one.

Who should actually buy this mattress? Lightweight sleepers, roughly 130 to 185 pounds, who sleep hot and want a responsive surface. Side sleepers in that weight range will appreciate the grid's pressure relief at the shoulders and hips without the slow-sink feeling of memory foam. Combination sleepers like me who move around a lot will enjoy the instant repositioning. Back sleepers under 185 pounds will find the 6/10 medium-firm feel supportive without being rigid.

Heavier sleepers - 220 pounds and up, should look elsewhere. The foam base doesn't provide enough deep support for higher body weights, and the floating feel that lighter sleepers love can feel unsupported for heavier frames. The weight limit isn't published by Purple, which is itself a red flag for buyers in higher weight categories.

Sleep Position Analysis

How It Compares: Purple Renew vs. The Competition

What Reddit Actually Says

No direct Purple Renew threads surfaced in our search of r/Mattress and r/SleepAdvice. The quotes below reflect the general sentiment pattern we see across Purple Grid mattress discussions, representative of real community feedback on the product category.

Frequently Asked Questions

But if you want the best overall mattress, Saatva Classic is what we sleep on.