Sleeping Duck

You’ll find that the customizable firmness system is one of the biggest reasons the Mach II feels like a true premium mattress. You can choose soft, medium, firm, or extra firm – and you can even split the mattress so each side has its own comfort level.

The modular inserts let you adjust the firmness whenever you need to, making it incredibly adaptable to life changes like injuries, pregnancy, weight fluctuations, or simply evolving comfort preferences.

This flexibility means your mattress stays comfortable and supportive long after you’ve bought it, instead of locking you into one feel forever.

The first thing you’ll notice when you lie down is how fresh and cool the surface feels. The bamboo cover is incredibly breathable and naturally wicks heat away from your body.

The hybrid design also enhances airflow through its multi-zoned coil system, allowing heat to escape rather than accumulating. Unlike dense memory foams that trap warmth, Sleeping Duck uses open-cell foams that help maintain a neutral, consistent temperature all night long. This makes it an excellent choice if you’re a hot sleeper or if you live in a warmer climate.

Pressure relief is a game-changer for deeper, more comfortable sleep — especially if you’re a side sleeper. The AntiGravity foam in the Mach II does an excellent job of distributing your weight evenly and easing tension in your shoulders, hips, and lower back. You’ll likely notice less stiffness after just a few nights because the foam contours gently without letting you sink too far.

Paired with the zoned spring support, the mattress keeps your spine aligned while softening pressure on sensitive areas, giving you a more relaxed and supported feel throughout the night.

Responsiveness is one of the areas where Sleeping Duck really sets itself apart from heavier memory foam mattresses. Instead of sinking slowly, you’ll feel a buoyant, supportive lift the moment you lie down. The mattress adapts instantly as you change positions, which is perfect if you’re a combination sleeper who moves around during the night.

The coils add a subtle, helpful bounce that keeps the mattress from ever feeling stiff or flat. You won’t feel stuck or restricted — every movement feels smooth, natural, and effortless.

When you test this mattress yourself, you’ll notice right away how well it handles motion. You can toss, turn, or even get in and out of bed quickly, and the movement barely spreads. The individually wrapped coils work independently, keeping motion contained to your side of the mattress.

The comfort foams above the coils help absorb surface movement before it has a chance to travel. Whether you or your partner are restless sleepers, you’ll really appreciate how still the mattress feels. Even heavier movements stay controlled, giving you deeper, more uninterrupted sleep.

You’ll immediately notice that edge support is one of the strongest features of the Sleeping Duck Mach II. When you sit or lie along the edges, the mattress stays stable without dipping or collapsing. The reinforced foam perimeter and spring encasement create a sturdy, supportive border that feels secure and reliable.

This gives you more usable sleeping space and makes getting in and out of bed much easier. Strong edge support also helps the mattress maintain its shape over time, preventing sagging and keeping the structure durable for years to come.

The Sleeping Duck Mach II is crafted with a thoughtful combination of materials:

• A breathable bamboo cover that enhances cooling
• AntiGravity foam for contouring comfort without excessive sinking
• Modular firmness inserts that allow personalized adjustments
• A multi-zoned pocket spring system for targeted support
• Reinforced edges to improve durability and maximize sleeping surface

Each layer complements the next, creating a mattress that feels balanced, durable, and truly premium.

The bamboo cover is soft, cool, and breathable. It feels luxurious against the skin and remains fresh throughout the night thanks to bamboo’s natural moisture-wicking properties.

The cover is removable and washable, which helps keep your mattress clean and allergen-free.

Sleeping Duck mattresses pair perfectly with adjustable bed bases. I tested it on an adjustable frame and found that the mattress bent smoothly without creasing or resistance.

The flexible foams and individually wrapped coils transition effortlessly into zero-gravity or elevated leg positions. Whether you love reading in bed, improving circulation, or easing pressure on your lower back, this mattress works well with both standard and high-end adjustable beds.

Sleeping Duck doesn’t offer traditional toppers because they aren’t necessary. Instead of altering comfort with an external layer, the internal modular system allows you to change firmness far more effectively. This eliminates topper shifting, uneven wear, and the need for bulky add-ons.

Sleeping Duck currently does not offer pillows. While a matching pillow line would be welcome, the mattress works beautifully with whichever pillow suits your personal sleeping style.

Delivery is seamless from start to finish. Your mattress arrives compressed in a manageable box, and once you unroll it, it expands fully within just a few hours. You’ll appreciate how straightforward everything is — from the clear 100-night trial to the ability to request firmness swaps if you want to fine-tune the feel.

Shipping is prompt, and customer service keeps you informed throughout the entire process, making everything easy and stress-free.