"I love that I can actually adjust this pillow. I took some foam out and it immediately felt better on my neck. It’s soft, supportive, and doesn’t go flat overnight."
Flex Pillow
Savings based on comparable value.Learn more
Pricing Disclosure
The listed comparable value represents the manufacturer's suggested retail price or the average retail price of similar products with comparable features, materials, and construction available from major retailers at the time of listing. Mellow's sale price reflects our direct-to-consumer pricing model, which eliminates traditional retail markups. Comparable values are reviewed periodically and may not reflect real-time pricing from all retailers.
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Overview
Materials
Care
FAQ
One Pillow. Your Perfect Fit.
Unlike traditional pillows that are one-size-fits-all, the mellow Flex Pillow lets you customize both height and firmness so it fits you exactly. Add or remove shredded memory foam until it feels just right, no flipping, no guessing, just personalized comfort.
Adjustable Height & Firmness
Unzip the pillow and add or remove foam to dial in your ideal support and loft.
Breathable, Plush Comfort
The flexible fill allows airflow for cooler sleep while staying soft, supportive, and pressure-relieving.
Support Where It Matters
Designed to help keep your head, neck, and shoulders aligned whether you sleep on your back or side.
Frequently Asked Questions
Everything you need to know about the Flex Pillow.
How do I adjust the pillow?
Unzip the inner liner and add or remove foam until you reach your preferred height and firmness.
Who is this pillow best for?
It’s ideal for side, back, and combination sleepers who want customizable support.
Is this pillow soft or firm?
It can be either. The feel depends on how much fill you use, more fill for firmer support, less fill for a softer feel.
Does it sleep hot?
The shredded memory foam allows for airflow, helping reduce heat buildup compared to solid foam pillows.
Is it hypoallergenic?
Yes. The materials are hypoallergenic, antibacterial, and OEKO-TEX® Standard 100 certified.
Trusted By Thousands Of Happy Sleepers
Real people are sleeping deeper, cooler, and more comfortably with mellow.
of mellow customers sleep at their ideal temperature
would recommend mellow to their family and friends
of mellow customers have left 5 star reviews
Complete Your Sleep Routine
A calming routine is only the beginning. Pair it with pillows and bedding that make it easy to relax, unwind, and sleep soundly through the night.