helmii Eternal Mattress - Experience the indulgence of quality sleep every night
The helmii Eternal Mattress is engineered to give you a balanced, medium-firm sleep surface that combines a soft, welcoming pillow top with a dependable, supportive core. The helmii Eternal mattress is built from multiple precision-measured foam layers and an 800-series firm pocket spring system to deliver responsive support night after night.
Layered Comfort & Performance
Designed to create a progressive comfort profile — soft on top, yet firm where you need it — the Eternal Mattress is made of
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Top Layer Pillow Top design with 2.5cm Soft Foam + 2.5cm Super Soft Foam pillow-top that gives an instant sinking, luxurious first feel.
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Layer 3: 1.5cm Hard Foam — transitional support beneath the pillow top.
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Layer 4: 2.5cm Hard Foam — enhances stability and prevents excessive sinkage.
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Layer 5: 5cm Super Soft Foam — tuned to add comfort without sacrificing support.
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Layer 6: 800-Series Firm Pocket Springs — the responsive core providing firm support, motion isolation and spinal alignment.
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Layer 7: Hard Foam base — a strong, firm support foundation that preserves shape and durability.
Why pocket springs matter!
At the heart of the mattress lies a premium pocket spring system. Unlike traditional open-coil springs, pocket springs work independently to respond to your unique body shape and movements. This means targeted support, reduced motion transfer, and pressure relief exactly where you need it most – ideal for couples and restless sleepers.
The 800-series pocket springs work independently to adapt to body contours and movements across the mattress surface — essential for maintaining correct spine alignment while still enjoying a cushioned surface.
Key benefits
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Medium-firm comfort — the perfect compromise for sleepers who want plushness at the surface with firm support beneath.
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Progressive foam layering — soft pillow top with structured support layers for long-lasting comfort.
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Responsive support — 800-series pocket springs reduce motion transfer and improve alignment.
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Durable base — hard foam foundation keeps the mattress stable and resilient.
Who it’s for
Ideal for back and combination sleepers and for those who prefer a supportive mattress with a plush top layer. The helmii Eternal Mattress also suits sleepers who need reliable, long-term support without sacrificing immediate comfort.
Care & maintenance
- Rotate the mattress regularly to promote even wear.
- Use a proper base or bedframe that supports the full mattress footprint.
- Follow the manufacturer’s warranty and care instructions included with your purchase.
Comfort level – Medium Firm
Height - 33cm
Returns and Refunds
Once opened and out of packaging this item is no longer returnable unless a helmii mattress protector has been purchased at the same time. Due to the nature of the material all sizes are approximate and may vary slightly in line with standard manufacturing tolerances.
We recommend that you rotate pocket spring mattresses 2 times a year for the first 2 years and 2-4 time a year after that, or it can start to wear unevenly and it won't provide the correct support you need. The main benefits of rotating your mattress regularly are: Better support for longer. Consistent comfort.
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