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Check out [Save More When You Bundle](https://mellowsleep.com/pages/shop)• [Up to 50% Off Sitewide](https://mellowsleep.com/pages/shop)• ## Best Sellers [](https://mellowsleep.com/products/cloud-alignment-pillow "CloudAlign Pillow") BESTSELLER [](https://mellowsleep.com/products/mellow-hotel-pillow "Waterproof & Stain-Resistant Hotel Pillow") [](https://mellowsleep.com/products/marshmellow-comforter "MarshMellow Comforter") BESTSELLER [](https://mellowsleep.com/products/mellow-flex-pillow "Flex Pillow") [](https://mellowsleep.com/products/waterproof-stain-resistant-hotel-pillow-copy "Waterproof & Stain-Resistant Hotel Pillow (2-Pack)") [](https://mellowsleep.com/products/cloudalign%E2%84%A2-pillow-2pk-bundle "2 CloudAlign Pillows + 2 Free Cooling Pillowcases") BESTSELLER Spring Kickoff Sale: Up to 50% Off Order Now 5 Reasons Chiropractors Recommend This Pillow To Back Sleepers      223+ Reviews Learn More → As Seen On   5 Reasons Chiropractors Recommend This Pillow To Back Sleepers      223+ Reviews Learn More → As Seen On  **Let’s be honest…** If you're a back sleeper, you'd think finding the right pillow would be easy. You're sleeping in the "correct" position. Your spine is straight. It should just work. But every morning, same thing. Your neck is stiff. Your shoulders are tight. And you're wondering how you slept 8 hours and still feel like you didn't rest. The problem is most pillows either prop your head too far forward or let it sink too far back. And the ones that feels right at first? Flat by 2am. **90% of pillows use a "one size fits all" design.** They don't account for your build, your shoulders, or how your neck actually needs to sit. **The Mellow Flex Pillow was built to fix that.** Here are 5 reasons back sleepers are switching. You Can Adjust the Height AND Firmness (Until It Fits YOUR Body) 1  You Can Adjust the Height AND Firmness (Until It Fits YOUR Body) 1 This is the #1 reason people switch. Most pillows force you to pick. Soft or firm. High or low. And you’re stuck with whatever you get. The Mellow Flex Pillow works differently. With the [**AdjustFill™ System**](https://mellowsleep.com/products/mellow-flex-pillow), you're in control. **Add foam** if your head tilts back and you need more support **Remove foam** if the pillow pushes your chin forward and creates tension You control the height. You control the firmness. For back sleepers the difference between the right loft is less than 1 inch. _💬 "I adjusted the height and firmness until it was right. No more pillow frustration."_— **Rachel R.,** Verified Customer The Shredded Foam Won’t Go Flat Like Your Last Pillow 2 The Shredded Foam Won’t Go Flat Like Your Last Pillow 2 Here's what happens with most pillows. You set it up at 10pm and it feels perfect. By 2am, the foam has compressed. You wake up stiff and you don't even know why. That's the problem with cheap polyester and solid foam. It compresses under the weight of your head all night. Once it's flat, it stays flat. The Mellow Flex Pillow uses shredded MellowSoft™ memory foam. Hundreds of small pieces that shift, rebound, and redistribute throughout the night. So the loft stays closer to where you set it from the time you fall asleep to the time you wake up. **Other pillows are designed to be replaced. This one is designed to be refilled.** If the loft ever settles over time, just unzip and add more foam. Extra foam is included with every pillow. _💬 "I can add fill as the pillow compresses over time. This pillow will last forever."_ — **Larry L.,** Verified Customer Chiropractors Helped Design It for Proper Neck Alignment 3  Chiropractors Helped Design It for Proper Neck Alignment 3 **The Mellow Flex AdjustFit™ System was developed with input from licensed chiropractors.** Back sleeping is the position most chiropractors recommend. Your spine is straight. Your weight is evenly distributed. But there's a catch. If your pillow is too high, it pushes your chin toward your chest. Your neck muscles strain to compensate all night. If it's too low, your head falls back and your neck gets zero support. **The Flex Pillow lets you add or remove foam until your head sits in a neutral position.** Support night after night. 💬 _"The ability to adjust the fill means the sleeper decides what ‘perfect support’ feels like for their body."_ — **Dr. Heim, Chiropractor** The Materials Your Face Sleeps on Matter Too 4  The Cover Stays Cool and Safe Against Your Skin 4 Back sleepers trap more heat than you'd think. The back of your head, your neck, your shoulders. All pressed into the pillow for 8 hours. That's a lot of surface area holding in warmth. **That's why the Flex Pillow's cover is designed to breathe.** It stays cool instead of turning into a hot pad by midnight. The cover is **OEKO-TEX certified.** Tested safe from over 350 harmful substances. **It's hypoallergenic, antibacterial, and 100% vegan.** _💬 "I have super sensitive skin and I was worried about switching pillows. No breakouts, no irritation. Just soft."_— **Michelle J** 30-Night Trial + Extra Foam Included (So There’s Zero Risk) 5  30-Night Trial + Extra Foam Included 5 At this point, you might be thinking: sounds great, but what if it doesn't work for me? Fair. You've been burned before. But here's what makes this different from other "risk free" trials. **Extra foam ships with every pillow.** You customize it from night one and adjust to your preference. **1-year warranty.** Most pillows at this price don't offer any warranty. If anything goes wrong, they replace it. **If your sleep position changes, it adapts with you.** Side, back, stomach. One pillow that adjusts to however you sleep. Right now, the Mellow Flex is **50% off at just $49** (down from $99.99). Plus free shipping on orders over $100. A year from now, you'll either still be buying pillows that go flat in three months. Or you'll be sleeping on the one pillow you never need to replace. _💬 "Best pillow investment because I can adjust it forever. No more pillow shopping."_ **— Donna Q.** ## Spring Kickoff Sale Live Right Now  ## Spring Kickoff Sale Live Right Now  Adjustable Fill Technology  Baby-Safe Fabric  Stays Fluffy For Years  Hypo Allergenic & Antimicrobial Order Your Flex Pillow Now Mellow Flex Pillow vs Others Adjustable Height Adjustable Firmness Extra Fill Included Chiropractor Endorsed 1-Year Warranty Flex Pillow Other Pillows      Your Deserve Better Sleep A year from now, you’ll either still be buying pillows that go flat in three months. Or you’ll be sleeping on the one pillow you never need to replace. The Mellow Flex is 50% off right now at just $49. It comes with extra foam, a 30-night trial, and a 1-year warranty. You deserve better than another pillow that gives up on you. **P.S.** Over 220 verified customers gave this pillow five stars. Most of them tried 10+ pillows before finding the Mellow Flex. Your future self will thank you for this one. 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[\\ \\ CloudAlign Pillow\\ \\ ★★★★★(34,672 reviews)\\ \\ $100.00$49.00Shop Now\\ \\ Shop Now](https://mellowsleep.com/products/cloud-alignment-pillow) [\\ \\ MarshMellow Comforter\\ \\ ★★★★★(10,876 reviews)\\ \\ $200.0099.99Shop Now\\ \\ Shop Now](https://mellowsleep.com/products/marshmellow-comforter) [\\ \\ Hotel Pillow\\ \\ ★★★★★(6,741 reviews)\\ \\ $59.99$29.99Shop Now\\ \\ Shop Now](https://mellowsleep.com/products/mellow-hotel-pillow) [\\ \\ Cooling Comforter\\ \\ ★★★★★(2,463 reviews)\\ \\ $129.00$79.99Shop Now\\ \\ Shop Now](https://mellowsleep.com/products/cloud-cold-comforter-white) ### Your cart is empty [Continue Shopping](https://mellowsleep.com/pages/shop) How About these? [](https://mellowsleep.com/products/marshmellow-comforter) [**MarshMellow Comforter**](https://mellowsleep.com/products/marshmellow-comforter) ★★★★★☆(14436 reviews) $200.00$84.99 White / Twin/TwinXLWhite / Full/QueenWhite / King/Cali KingAdd shop.app # shop.app is blocked This page has been blocked by an extension - Try disabling your extensions. ERR\_BLOCKED\_BY\_CLIENT Reload This page has been blocked by an extension  mellowsleep.com # mellowsleep.com is blocked This page has been blocked by an extension - Try disabling your extensions. ERR\_BLOCKED\_BY\_CLIENT Reload This page has been blocked by an extension  mellowsleep.com # mellowsleep.com is blocked This page has been blocked by an extension - Try disabling your extensions. ERR\_BLOCKED\_BY\_CLIENT Reload This page has been blocked by an extension  mellowsleep.com # mellowsleep.com is blocked This page has been blocked by an extension - Try disabling your extensions. 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