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Dual-Sided Extra Firm Mattress (Firmness ★★★★ |High-Density Firm Foam + Coconut Fiber Board, 9" Thick)

Dual-Sided Extra Firm Mattress (Firmness ★★★★ |High-Density Firm Foam + Coconut Fiber Board, 9" Thick)

$600.00 Sale-only
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Production Description

This dual-sided extra firm mattress is designed for sleepers who prefer very firm support but want flexibility in firmness choice. Unlike standard mattresses that offer only one usable side, this mattress features two functional sleeping surfaces with different firmness levels, allowing users to adjust their sleep feel simply by flipping the mattress.

One side is constructed with high-density firm foam, delivering strong, resilient support similar to traditional Haima-style hard foam mattresses. This surface feels very firm while still offering slight elasticity for comfort and ease of movement.

The opposite side is built with a coconut fiber board, providing an even firmer, more rigid support surface. This side offers a hard, stable feel with minimal compression, ideal for sleepers who prefer the hardest possible sleeping experience.

Both sides fall within the extra-firm category, but with a noticeable difference in firmness level. The coconut fiber side is the firmest, while the high-density foam side is slightly more forgiving, giving sleepers two levels of firmness in one mattress.

With its 9-inch thick structure, this mattress delivers excellent durability, long-term support, and versatility. It is especially suitable for back and stomach sleepers, users who require strong spinal support, and those looking for a mattress similar to premium hard-support models such as diamond-series style mattresses.

Ideal for master bedrooms, long-term use, rental properties, or anyone seeking a highly durable, ultra-firm sleep solution. Compatible with all standard bed frames.

Available sizes and prices

Twin/Single 39″×75″(99×190cm): $480
Full/Double 54″×75″(137×190cm): $580
Queen 60″×80″(152×203cm): $600
King 76″×80″(193×203cm): $780

Pillow top upgrade: Add a foam pillow top to enhance surface comfort while maintaining firm support. Total mattress thickness increases by 2 inches. Additional cost: $100


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