Reign Invictus Mattress - Firm
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Why Choose Reign Invictus Mattress?
Engineered For Peak Performance
Designed to deliver dependable support and comfort for active lifestyles and restorative sleep.
Advanced Spinal Support
Helps promote healthy alignment and balanced weight distribution throughout the night.
Responsive Pressure Relief
Adapts to your body's natural shape to reduce pressure on key contact points.
100 Night Trial
Sleep on it at home and experience the difference with complete confidence.
Reign Invictus
Designed for active lifestyles and recovery-focused sleep, the Invictus Sporty Memory Foam Mattress combines cooling comfort, orthopaedic-style support, and a sleek athletic finish. The key features to focus on are medium-firm spinal support, temperature regulation, and pressure relief for muscle recovery. Similar sport-support mattresses in the market use cooling memory foam and 25cm deep support layers for enhanced body alignment and airflow.
Key Features
- 25cm Thick Performance Build
Deep layered construction for enhanced support, durability, and comfort. - Medium Firm Feel
Balanced comfort level ideal for sports people, gym users, and active sleepers needing body recovery and spinal alignment. - Cooling Memory Foam
Breathable foam layers help regulate temperature and reduce heat build-up during sleep. Cooling gel and airflow fabrics are commonly used in similar mattresses. - Pressure Relief Support
Helps reduce pressure on shoulders, hips, lower back, and joints after training or physical activity. - Sporty Velvet Side Panels
Premium athletic-inspired velvet border design with a modern sporty finish. - Motion Isolation
Minimises partner disturbance by absorbing movement across the mattress surface. - Orthopaedic Support Base
High-density support foam helps maintain posture and body alignment throughout the night. - Breathable Fabric Cover
Soft-touch knitted top panel designed for airflow and freshness.
We offer free delivery on all orders. Estimated delivery time is 5–7 working days, excluding weekends and UK bank holidays. Our mattresses are delivered unrolled and ready to use. Our delivery team will contact you to arrange a suitable delivery day and provide an estimated arrival window where available. Please make sure someone is available to accept the delivery and that the access route is clear. If your order arrives damaged or you have not been contacted within 7 working days, please contact us at hello@reignsleep.co.uk
We offer a 100-night sleep trial so you can decide with complete peace of mind. Please refer to our returns for more information
Why It's Right for You
What it does for you
Delivers firmer support
A firm feel helps keep your body aligned and supported with less sink through the night.
Relieves everyday pressure
Responsive comfort layers help ease pressure on your shoulders, hips and lower back.
Sleeps cooler and calmer
Breathable materials help reduce heat build-up, while motion isolation helps limit partner disturbance.
Best for you if...
You want a firmer mattress that feels supportive and stable.
You live an active lifestyle and want more recovery-focused comfort.
You share a bed and want less movement from the other side.
What's Inside
Find Your Perfect Feel
We’ve rated this a 9 out of 10.
A firmer feel built for stronger support, better stability, and less sink.
WHY Reign Mattress?
Luxury mattresses, honest prices, built for better sleep.
We make premium mattresses more affordable by cutting out unnecessary showroom markups and selling directly to you. That means better value, reliable quality and lasting comfort long after your mattress arrives.
5 Year Warranty
Enjoy complete peace of mind with our 5-year warranty. Designed to protect against manufacturing defects, it ensures lasting quality and confidence in your purchase.
100 Night Trial
Try your new mattress at home for 100 nights. We want you to feel completely comfortable with your choice, not rushed into a decision.
Made in Britain
Our mattresses are handmade in the UK by skilled makers using quality materials, giving you comfortable support and lasting sleep quality without the inflated showroom price.

