Posh + Lavish Flux
Best plush mattress for sleepers seeking natural materials and lasting support.
The Posh + Lavish Flux mattress offers a luxurious, plush feel designed for exceptional comfort and support. It features a core construction incorporating natural rubber and memory foam, layered beneath a breathable Tencel-faced fabric cover. This mattress also includes a protective layer of wool and cotton acting as a natural fire retardant. Built to last, the Flux comes backed by a comprehensive 20-year warranty, ensuring long-term quality and peace of mind for your sleep investment. Experience premium materials engineered for restorative rest.
$4138.65
Owner Satisfaction
4.6
/ 5
Category Rank
168
/ 6850
#168 in Mattresses
Price vs Category Average
+149%
Above average
Comfort Layer
Plush Natural Rubber + Memory Foam
/ Plush Natural Rubber + Memory Foam
Who it's for
- Hot sleepers seeking natural, breathable temperature regulation
- Side and combination sleepers needing targeted pressure relief
- Shoppers prioritizing long-term durability and structural integrity
Who should skip it
- Budget-conscious buyers seeking more affordable mattress options
- Sleepers preferring the deep, sinking hug of memory foam
- Individuals who struggle to move or rotate heavy furniture
Performance breakdown
Pressure relief
Natural rubber and memory foam blend cradles joints with cloud-like precision.
Thermal regulation
Tencel-faced fabric effectively wicks moisture to keep sleep surfaces cool.
Material integrity
Premium natural components ensure long-term resilience and structural support.
Safety standards
Wool and cotton layers provide natural, chemical-free fire protection.
Longevity assurance
Twenty-year warranty reflects deep confidence in the mattress construction.
Motion isolation
Dense foam core effectively absorbs movement for undisturbed partner sleep.
Key Specs
Comfort Layer
Plush Natural Rubber + Memory Foam
Cover Material
602 Gram Weight Tencel-Faced Fabric
Fire Retardant Layer
Wool and Cotton
Warranty
20 years
Features
- Offers a plush comfort level for immediate softness
- Utilizes natural rubber and memory foam for supportive cushioning
- Features a high-quality, durable Tencel fabric cover
- Includes natural wool and cotton fire retardant layer
- Available in multiple sizes including Split Head options
What customers say
The Posh + Lavish Flux earns high marks primarily for its exceptional quality and deeply restorative comfort. Consumers consistently describe the feel as supportive yet uniquely plush, often noting that the premium materials translate directly into better sleep and reduced pressure points. While positioned as a luxury investment, buyers feel the durability and transformative comfort genuinely justify the cost, making it a standout choice for those prioritizing long term wellness.
Know before you buy
The Flux is designed to provide immediate softness upon lying down, thanks to its plush natural rubber and memory foam comfort layers. It offers a sink-in sensation while still providing the underlying support necessary to keep your spine aligned.
This hybrid construction balances the responsiveness and durability of natural rubber with the pressure-relieving contouring of memory foam. The result is a supportive surface that adapts to your body shape without the 'stuck' feeling sometimes associated with traditional memory foam.
Yes, Tencel is naturally breathable and moisture-wicking, which helps regulate temperature throughout the night. The 602-gram weight fabric is durable and provides a soft, cool-to-the-touch surface.
Instead of using synthetic chemical fire retardants, the Flux uses a blend of natural wool and cotton. These materials act as a natural barrier, providing safety while maintaining the breathability of the mattress.
Yes, the Flux is available in several standard sizes and includes Split Head options. This makes it a great choice if you use an adjustable base and need independent movement for each side of the bed.
The 20-year warranty is a comprehensive commitment to the mattress's structural integrity and material quality. It protects against manufacturing defects and significant sagging, ensuring the mattress maintains its performance over two decades of use.
Still have a question?
Ask Hayley anything about this product before you decide.