Buying a mattress online is risky. You cannot try it first. Returns are a hassle. And every brand claims to be the best. After sleeping on nine different mattresses over five years, I have learned that marketing claims mean nothing. How a mattress feels to you depends on your weight, sleeping position, and whether you sleep hot or cold.
This review compares three of the most popular online mattress brands: Casper, Purple, and Saatva. I tested the Casper Nova Hybrid, Purple RestorePlus, and Saatva Classic for 30 nights each. I tracked sleep quality, back pain, partner disturbance, and temperature regulation. Here is the honest comparison.
Construction and Feel
The Casper Nova Hybrid is a soft mattress designed for side sleepers. It has five layers including perforated foam for breathability and zoned support that is softer under the shoulders and firmer under the hips. The feel is what Casper calls ”hydrofoam” which is springy and responsive. You do not sink in too much. The Nova Hybrid costs around 2,200 dollars for a queen.
The Purple RestorePlus uses Purple’s signature Gel Flex grid. This is not foam. It is a hyper-elastic polymer grid that buckles under pressure. The grid feels weird at first, like sleeping on a soft gummy bear. It supports your body while allowing air to flow freely through the grid. The RestorePlus includes a coil support layer underneath. Price is around 2,300 dollars for a queen.
The Saatva Classic is completely different. It is a traditional innerspring mattress with a pillow top and a coil-on-coil design. There are no foam layers that break down over time. The Saatva comes in three firmness levels: plush soft, luxury firm, and firm. We tested the luxury firm. Price is around 1,800 dollars for a queen, making it the most affordable of the three.
Sleeping Position Results
As a side sleeper weighing 165 pounds, I found the Casper Nova Hybrid the most comfortable. The shoulder zone softened enough to prevent pressure points. My hand did not fall asleep. My hip did not ache in the morning. The springy feel made changing positions easy. For side sleepers under 200 pounds, Casper is excellent.
The Purple RestorePlus also worked well for side sleeping but felt different. The grid creates a floating sensation. You do not feel the mattress pushing back. Some people love this. Others find it unsettling. My partner, who weighs 130 pounds, felt like the Purple was too firm because she did not weigh enough to collapse the grid properly. Purple works best for people over 150 pounds.
The Saatva Classic in luxury firm was too firm for pure side sleeping. My shoulder felt compressed after a few hours. However, when I slept on my back, the Saatva was fantastic. The lumbar support zone kept my spine aligned. Back sleepers will love the Saatva. Stomach sleepers should choose the firm version.
Temperature Regulation
This category has a clear winner. The Purple RestorePlus sleeps the coolest by far. The Gel Flex grid has open channels that allow body heat to escape. Even on hot summer nights, the Purple stayed neutral. No heat buildup at all.
The Casper Nova Hybrid sleeps moderately cool. The perforated foam layer helps, but foam still retains more heat than the Purple grid. I noticed warmth after several hours but not enough to wake up sweating.
The Saatva Classic sleeps warm but not hot. Innerspring mattresses generally breathe better than foam, and the cotton cover helps. However, the pillow top layer creates some heat retention. For most people, the Saatva will be fine. Hot sleepers should pick Purple.
Motion Transfer and Partner Disturbance
If you share a bed with someone who moves a lot, motion isolation matters. The Casper Nova Hybrid is the best here. The foam layers absorb movement almost completely. My partner could get in and out of bed without me feeling a thing.
The Purple RestorePlus is second. The grid isolates motion fairly well, but the coil layer underneath transfers some movement. Not a problem for most couples, but not as good as Casper.
The Saatva Classic has the most motion transfer because it is an innerspring mattress. You will feel your partner rolling over. If you are a light sleeper, the Saatva may wake you up.
Winner for motion isolation: Casper.
Edge Support
Edge support matters if you sit on the edge of the bed to put on shoes or if you sleep near the edge. The Saatva Classic wins here easily. The coil-on-coil design includes a reinforced edge. You can sit on the side without feeling like you will slide off.
The Casper Nova Hybrid has decent edge support for a foam mattress but compresses about two inches when you sit on the edge.
The Purple RestorePlus has the worst edge support. The grid compresses completely when you sit near the edge. You will slide off if you are not careful.
Winner for edge support: Saatva.
Trial and Warranty
All three brands offer a 100-night trial. Casper and Purple require you to keep the mattress for at least 30 nights before processing a return. Saatva has no minimum. All three offer full refunds and free pickup if you return the mattress.
Warranty: Casper offers 10 years. Purple offers 10 years. Saatva offers a lifetime warranty. That is a significant difference. Saatva believes in their construction enough to cover it for as long as you own the mattress.
Final Verdict: Which One Should You Buy?
Buy the Casper Nova Hybrid if you are a side sleeper under 200 pounds and you sleep with a partner who moves a lot. The combination of pressure relief and motion isolation is unmatched.
Buy the Purple RestorePlus if you sleep hot, you weigh over 150 pounds, and you like a weird but comfortable floating sensation. Purple is the best cooling mattress on the market.
Buy the Saatva Classic if you are a back or stomach sleeper, you want a traditional innerspring feel, or you plan to keep the same mattress for 15 years. The lifetime warranty is a huge value.
For me personally, the Casper Nova Hybrid was the best match for my side sleeping habit. But your body is different. Use this guide to understand the trade-offs, then choose based on your sleeping position and temperature preferences.
Brand Rated tested each mattress for 30 nights. All testing was done in the same bedroom with consistent temperature and bedding.
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