MLILY mattress on a bed in a bedroom setting

MLILY - WellFlex 3.0 Plusher - 12" Mattress

Firmness Level:

This scale shows the firmness of the mattress. Lower numbers provide a softer, plusher feel. Higher numbers offer firmer support for proper spinal alignment.

Cooling Level:

This scale shows how cool the mattress sleeps. Lower numbers provide simple airflow. Higher numbers offer enhanced cooling to keep you comfortable.

$1,299.00

Free shipping within the contiguous United States.

Pickup available at Majestic Sleep Systems

Usually ready in 5+ days

Free shipping within the contiguous United States. Delivery is not available to Alaska, Hawaii, US territories, or military addresses.

Flexible returns

The MLILY WellFlex 3.0 Plusher 12" Memory Foam Mattress is designed for sleepers who crave a softer, more enveloping feel without sacrificing the adaptive support MLILY is known for. As the plushest model in the WellFlex lineup, it delivers a cloud-like, pressure-relieving experience that gently cradles your body while still maintaining healthy spinal alignment.

Built with MLILY's advanced WellFlex technology, this mattress responds intelligently to your body's curves, offering deeper contouring ideal for side sleepers and anyone who prefers a cushioned, sink-in sensation. Multiple layers of premium memory foam work together to relieve pressure points in the shoulders, hips, and lower back, helping reduce tension and promote more restorative sleep.

Cooling gel-infused foams help regulate temperature throughout the night, preventing heat buildup and ensuring a consistently comfortable sleep surface. With its durable 12-inch profile and long-lasting performance, the WellFlex 3.0 Plusher adapts to your body over time while maintaining its plush comfort and supportive structure for years of rejuvenating rest.

Why You’ll Love It
Plush, cloud‑like comfort with deeper contouring
Adaptive WellFlex technology that still supports healthy alignment
Pressure‑relieving foams ideal for shoulders, hips & joints
Cooling gel‑infused layers that help prevent heat buildup
Durable 12" profile designed for long‑lasting softness and support

Plush
Side sleepers who need extra cushioning for shoulders & hips
Sleepers who love a softer, more enveloping feel
Combination sleepers who prefer gentle contouring
Anyone wanting deeper pressure relief without losing alignment

Hot sleepers who benefit from cooling gel‑infused foams

Sleep Technology
Comfort Knit Fabric Cover: Soft, breathable, and gentle on the skin—this top layer sets the tone for a cozy sleep experience.
1.5” Gel AeroFusion® Memory Foam: Infused with cooling gel to help regulate temperature and relieve pressure points.
1.5” BioBreeze™ Memory Foam: Eco-friendly and breathable, this layer adds plush comfort while promoting airflow.
2” Liquid Gel CoolFlex™ Foam: A responsive layer that adapts to your body and enhances cooling for deeper sleep.
1.5” Flex Comfort Foam with Egg Crate Top: Designed for extra cushioning and airflow, this textured foam adds a gentle lift and pressure relief.
5.5” Flex Support Base Foam he foundation of the mattress—providing stability, durability, and balanced support for all sleep positions.

Fiberglass-free FR Inner Cover A safe and effective flame-retardant layer around the mattress without the disadvantages of fiberglass and other fire-retardant chemicals.

Care
Spot clean with mild detergent and cold water; avoid bleach or harsh chemicals to protect the foam and fabric.
Use a high‑quality mattress protector to guard against spills, allergens, and everyday wear.
Allow the mattress to fully expand after unboxing before sleeping on it.
Rotate the mattress head‑to‑toe every few months to help maintain even comfort and extend its lifespan.
Place on a supportive, breathable foundation to ensure proper airflow and long‑term performance.

🛠️ Setup
Unbox. Unroll. Expand.
📦 Carefully remove the rolled mattress from the box
✂️ Cut open the protective bag (avoid sharp tools!)
🛏️ Place on bed frame and let it expand for 24–48 hours
🌙 Sleep soundly with a 10-year warranty

Shipping: Orders ship within 24 hours and typically arrive in 7–10 business days. Timing may vary based on availability.

Will the WellFlex 3.0 Plusher feel too soft for everyday support?

Not at all. While the WellFlex 3.0 Plusher is the softest model in the WellFlex lineup, it is designed to provide plush comfort without sacrificing proper spinal alignment. Its adaptive support system helps your body stay properly supported while enjoying a softer feel.

Is the WellFlex 3.0 Plusher a good choice for side sleepers?

Yes. The pressure-relieving memory foam is designed to cushion sensitive areas like the shoulders and hips, making it an excellent option for many side sleepers seeking a softer sleep surface.

Will I sink too deeply into this mattress?

The WellFlex 3.0 Plusher provides a comfortable, body-contouring feel, but its responsive support layers help prevent the excessive sinking that some sleepers experience with traditional memory foam mattresses.

Does the WellFlex 3.0 Plusher sleep hot?

No. Cooling gel-infused foam layers are designed to help regulate temperature and reduce heat buildup, creating a more comfortable sleep environment throughout the night.

Can this mattress help relieve pressure on my hips, shoulders, and lower back?

Yes. Multiple layers of premium memory foam gently contour to your body and help distribute weight evenly, reducing pressure points and enhancing overall comfort.

Who should consider the WellFlex 3.0 Plusher?

The WellFlex 3.0 Plusher is ideal for sleepers who enjoy a softer, more cushioned feel without giving up the support needed for healthy sleep posture. It's particularly well-suited for side sleepers and anyone who prefers a more enveloping sleep experience.