The Purple Mattress is a mid-range bed-in-a-box mattress composed primarily of foam, featuring a unique GelFlex Grid as its comfort layer. This purple-colored grid looks like a plastic waffle and is marketed for pressure relief and cooling. You can feel it under the mattress cover, and not everyone likes its rubbery grid feel, while it has some advantages that make it work well for others.
Our Verdict
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Light Weight
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Average Weight
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Heavy Weight
The Purple Mattress is a decent option for side sleeping for both heavier and average-weight individuals. It offers good body conformity for average and heavier people, so your shoulder will sink in enough to relieve pressure. However, it's not that supportive for people in the average and heavier weight categories, which can result in your hips sinking in too far. Lighter individuals won't compress the mattress enough for proper pressure relief, making it a less suitable option for side sleepers in that weight category.
Decent body conformity for average people.
Gel-Flex Grid layer is very contouring.
Poor body conformity for lighter people.
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Light Weight
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Average Weight
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Heavy Weight
The Purple Mattress is best-suited for lighter back sleepers. If you're in the lighter weight category, it's supportive enough to keep your spine aligned when sleeping on your back. It doesn't offer very good pressure relief overall for lighter people, but its highly contouring grid layer helps cushion your hips. However, it offers mediocre support for average and heavier people, which makes it less suitable for back sleeping.
Excellent body conformity for heavier people.
Gel-Flex Grid layer is very contouring.
Good support for lighter people.
Mediocre support for average and heavier people.
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Light Weight
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Average Weight
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Heavy Weight
The Purple Mattress is a best-suited for lighter stomach sleepers. While it doesn't do a great job of relieving pressure on the lighter parts of your body like your knees, its very contouring grid layer helps. It's very supportive for lighter people, but despite its Medium-Firm feel, it doesn't offer good support for most people. If you're an average or heavier person, your hips will sink in too far for proper spinal alignment.
Excellent body conformity for heavier people.
Gel-Flex Grid layer is very contouring.
Good support for lighter people.
Mediocre support for average and heavier people.
The Purple Mattress is decently durable. Its polyfoam transition and support layers are made of polyfoam that's dense enough to be considered good quality. It's likely to resist showing signs of wear, like sagging, for longer compared to mattresses that use low-quality foam.
Includes good-quality, durable polyfoam layers.
The Purple Mattress offers varying levels of pressure relief, depending on your weight. This 'Medium-Firm' mattress won't compress enough under the weight of lighter individuals for proper pressure relief, especially for side sleepers, who have a significant amount of weight concentrated in the shoulder and arm areas. Its body conformity performance is decent for average people and excellent for heavier people, so heavier people can comfortably side-sleep. Regardless of your weight, its Gel-Flex Grid collapses easily, but lighter parts of your body won't sink past it into the transition layer. Still, the purple grid is very contouring, which helps reduce pressure.
Decent body conformity for average people.
Gel-Flex Grid layer is very contouring.
Poor body conformity for lighter people.
The Purple Mattress is supportive for lighter individuals, but not as much for those in the average and heavier weight categories. If you're in the lighter weight category, you can sleep on your back or stomach, and your hips will stay aligned with the rest of your body. However, if you're an average or heavier person, the heavier parts of your body will sink more than the rest of your body, and when you sleep on your back or stomach and most of your weight is concentrated around your hips, it won't offer good support.
Excellent body conformity for heavier people.
Good support for lighter people.
Mediocre support for average and heavier people.
The Purple Mattress has fantastic cooling performance. It traps very little heat and is worth considering if you're a persistently hot sleeper. Its grid-like polymer comfort layer and relatively low 9-inch height allow for greater air circulation and less heat retention than other all-foam mattresses.
Fantastic cooling performance.
The Purple Mattress has good motion dissipation. You'll briefly feel bigger movements, like when your partner rolls over. However, you won't feel like you're bouncing around, so your partner's movements are less likely to wake you up.
Good motion isolation.
The Purple Mattress has fantastic responsiveness. The GelFlex Grid comfort layer recovers its shape practically instantly after being compressed. It's also moderately bouncy, despite its all-foam design. As a result, it feels easy to move around in your sleep, and you won't feel constricted.
Fantastic responsiveness makes changing sleeping positions easy.
Performance Usages
Changelog
- Updated Mar 09, 2026: We converted this review to Our Verdict section to clearly show the suitability of a mattress for your weight and sleeping position.
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Updated Feb 16, 2026:
Added a link to our recommendations for the best mattresses-in-a-box in the Popular Comparisons box.
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Updated Feb 02, 2026:
We mentioned the Casper Cooling Select in the Support box for average-weight and heavier-weight sleepers who want a more supportive all-foam mattress.
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Updated Jan 12, 2026:
Compared its cooling performance to the Purple RestorePlus Hybrid's.
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Differences Between Sizes And Variants
The Purple Mattress is available in Twin, Twin XL, Full, Queen, King, California King, and Split King sizes. It comes in one firmness option, which Purple describes as 'Medium Firm'. Our unit is Queen-sized, but other sizes may perform differently. Here's a picture of our unit's label.
If you encounter another variant, let us know in the comments, and we'll update our review.
Popular Mattress Comparisons
The Purple Mattress is a medium-firm mattress with an unusual design that makes it very contouring as well as responsive. It's a good option if you like the feeling of a mattress molding around you, but don't want to feel stuck in place, which can happen with memory-foam mattresses like the Zinus Original Green Tea 2024. The Purple also stands out for its fantastic cooling performance. While it has a medium-firm feel, if you sleep on your stomach or back and want something even firmer, the Sleep On Latex Pure Green Organic is firmer and offers a similar amount of bounce, sinking, and contouring. That said, it's not as suitable for hot sleepers.
If you're looking for a bed-in-a-box, check out our recommendations for the best options, or check out the best mattresses overall.
You might prefer either the Purple Mattress or the Novaform ComfortGrande Plus. Both are medium-firm and best suited for light and average back and stomach sleepers. The Novaform uses memory foam, so it contours but moves slowly. It offers better motion isolation, making it much better for sleeping with a partner. The Purple is very responsive, so you never feel stuck in place. It stands out for its fantastic cooling and is a much better option for hot sleepers.
The Purple RestorePlus Hybrid is better for most people than the Purple Mattress. The RestorePlus offers more pressure relief, making it more suitable for average-weight side sleepers. It also offers sturdier edges and better motion dissipation. It's more cooling, although both models are extremely cooling.
The Boring Mattress and Purple Mattress are well-matched overall, but each has its own strengths. The Boring has the edge when it comes to motion isolation, especially edge support. You feel less movement on the Boring, so it's a good choice if you sleep with a partner who tosses and turns. Its excellent edge support also benefits partnered sleeping, since you can comfortably sleep near the edge, extending the usable sleeping area. The Purple, on the other hand, outperforms the Boring when it comes to cooling and responsiveness. It keeps you cool as you fall asleep and throughout the night, and it's very easy to shift sleeping positions. These characteristics aren't common for a foam mattress, since they tend to trap heat and absorb motion, so the Purple is an especially good choice if you're looking for a foam mattress with these qualities.
The Purple Mattress and the Nectar Premier have different strengths. While both are cooling enough for hot sleepers, the Purple has exceptional cooling, so it's worth considering if that's a big priority. On the other hand, the Nectar has significantly better motion isolation, so movement is less likely to wake you. The Nectar has a plusher 'Medium' feel that makes it more suitable for average side sleepers, while also offering better support for average and heavy people. The Purple's firmer feel makes it more supportive for lighter people, however.
Test Results
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