Which medium softness mattresses have the best deals during flash sales?

Here is a list of medium softness mattresses with details on construction, firmness options, and support features:

Koala Plus Mattress

Why Koala Plus Mattress is a good choice

• Seasonal topper lets you choose a cool or warm sleeping surface.

• Customisable firmness on each side suits couples with different preferences.

• Advanced cooling technologies help regulate temperature for better sleep.

The Koala Plus Mattress features a dual-sided, seasonal topper, with one side using CoolThread™ technology for a cooler sleep in summer, and the other comprising organic and recycled fibres for added warmth in winter. Its Kloudcell® comfort layer is double-sided, allowing users to choose between medium-firm and firm support simply by unzipping and flipping the layer. For couples, the Partner Preference feature enables each side to be customised for individual firmness needs. The mattress also incorporates five targeted high-density support zones, designed to promote spinal alignment and relieve pressure across shoulders, hips, and feet for a more supportive rest.

Origin LumbarCloud Mattress

Why Origin LumbarCloud Mattress is a good choice

• Hybrid nine-layer design ensures durability and comfort.

• Dual-stage coil system adapts support to your body weight.

• Cooling cover and latex foam keep sleepers comfortable all night.

The Origin LumbarCloud Mattress utilises a nine-layer hybrid construction, starting with a cool-to-touch IceSilk Tencel™ cover and bamboo-infused Australian wool for breathability. It incorporates Graphite Diamond™ latex foam and ComfortCloud™ microfibres to enhance cooling, while HexaGrid™ Ultra polymer and gel blend provide targeted support. The mattress features a medium-firm feel (6.5/10) and uses a dual-stage coil system, including premium titanium micro springs and a 7-zone titanium support layer, to adapt to individual body weights and promote spinal alignment. D-4 Edge Support and motion isolation foam further contribute to comfort and stability across sleeping styles.

SD MACH II

Why SD MACH II is a good choice

• Easily adjust firmness, including a split option for couples.

• Multi-zoned springs target key areas for improved spinal alignment.

• Breathable bamboo cover helps maintain a fresh sleeping environment.

The SD MACH II mattress features a hybrid construction, combining foam layers with individually wrapped steel springs for support and pressure relief. Its BreatheTech™ cover is made from bamboo yarn, designed for breathability and easy removal for washing. Underneath, the Antigravity Surface Foam and ComponentAdapt system use high-density AirGrown polyurethane foam, which provides a weightless feel and allows for customisable firmness. Users can choose between medium, firm, or a half-half configuration to accommodate different preferences, with further adjustments available during the trial period. The multi-zoned spring base targets support across body areas, promoting spinal alignment for various sleeping positions.

Eva Premium Adapt Mattress

Why Eva Premium Adapt Mattress is a good choice

• Customisable firmness by rearranging layers for personal comfort.

• Five support zones help relieve pressure across your body.

• CoolMax™ cover and open-cell foam enhance airflow and cooling.

The Eva Premium Adapt Mattress features a CoolMax™ fabric cover that is removable and machine-washable, layered over air memory foam, MDI foam, and cloud foam for balanced comfort. Beneath these, a high-density foam layer sits atop a 5-zone pocket spring system, with reinforced steel springs encased in foam for targeted support across the neck, back, shoulders, hips, and legs. Users can customise firmness by repositioning comfort and support layers, offering medium-soft, medium, or firm options. For couples, a split configuration allows individual firmness preferences on each side. The mattress design also encourages breathability and airflow.

Ecosa Pure Mattress

Why Ecosa Pure Mattress is a good choice

• Interchangeable comfort layers allow easy firmness adjustments.

• 7-zone pocket springs give precise support to different body areas.

• Micro coil technology increases breathability and contouring comfort.

The Ecosa Pure Mattress features a removable, machine-washable cover crafted from recycled plastic bottles, paired with a dual-foam comfort layer that combines latex and gel-infused memory foam. Its hybrid construction includes a micro coil layer and 7-zone pocket springs, providing targeted support and breathability. The mattress allows for personalisation, as users can adjust the comfort layers between medium and medium-firm settings, and couples can customise each side to suit differing preferences. High-density support zones and micro coil technology help maintain spinal alignment and alleviate pressure points, accommodating a variety of sleeping positions and body types.

Nolah Evolution 15" Luxury Firm Mattress

Why Nolah Evolution 15" Luxury Firm Mattress is a good choice

• Advanced cooling foams and fibres keep the surface cool to touch.

• Zoned support system targets the lumbar region for spinal alignment.

• Multiple firmness options cater to different sleep preferences.

The Nolah Evolution 15" Luxury Firm Mattress is a hybrid option built with multiple layers, including an organic cotton cover with ArcticTex™ fibres for enhanced breathability. Its construction features a Euro top with cooling foam, graphite-infused AirFoamICE™, and high-resilience foam for balanced pressure relief and support. The mattress is available in three firmness levels—plush, luxury firm, and firm—allowing users to select a feel that suits their preferences and sleeping style. Support is tailored with a zoned coil system, offering targeted reinforcement in key areas to promote spinal alignment and provide comfort for various body types.

Ergoflex® 5G Memory Foam Mattress

Why Ergoflex® 5G Memory Foam Mattress is a good choice

• Dense memory foam provides excellent pressure relief and body contouring.

• Cool-Sleep™ airflow layer helps maintain a comfortable temperature.

• Minimal motion transfer ensures undisturbed sleep for couples.

The Ergoflex® 5G Memory Foam Mattress features a five-layer construction, beginning with a breathable, moisture-wicking TENCEL® cover that is machine-washable. A protective inner cover shields the core layers, while the high-density visco-elastic memory foam contours to the body for targeted pressure relief. The Cool-Sleep™ airflow layer is designed to enhance air circulation and help regulate temperature throughout the night. The high-resilience foam base provides foundational support and long-term durability. Offering medium-firm support, this mattress is suited to various sleeping positions and minimises motion transfer, supporting spinal alignment and comfort. A 30-night trial and 10-year warranty are included.