Hybrid® Ultra Mattress has a rating of ["4", "7"], based on 2158 reviews.
View ReviewsStay up to 4.4°C cooler with our unique HeatRelease™ technology. Engineered with heat-absorbing graphite, these strips are proven to draw excess warmth away from your body as you sleep, starting within 20 minutes and actively working all night long. Together with our graphite-infused Simbatex® foam, they keep you at the ideal sleep temperature for up to 8 hours .
We wanted the coolest, most luxurious comfort layer for the top of our Ultra – so we made FusionCool™. Blending wool, charcoal, bamboo and kapok, it provides silky-soft cushioning that’s naturally breathable, allowing air to flow and preventing heat build-up, keeping you cool and dry.
What’s behind our “sleeping-on-a-cloud” feel? Our titanium alloy Aerocoil® microsprings. We proudly place them at the top of our Ultra, where comfort matters most, and there’s up to 3,800 in two layers – plus an extra layer of up to 2,500 – for ultimate, pinpoint support. As they compress individually, they push fresh air upwards and respond separately to movements – so you feel cooler, and your partner’s toss-and-turns stay on their side.
If your mattress makes you feel too hot at night, your quality of sleep suffers. But our Simbatex® foam has over 5x more airflow than memory foam , and it’s infused with graphite to move warmth away from your body. Our Ultra exclusively has two luxurious layers, so you get all the comfort of memory foam – minus the heat.
(And why Simba is the King of Hybrids!)
Hybrid mattresses combine foam and springs. Foam mattresses give a restful, cradled feel but can feel soft, hot and lack support. Spring mattresses sleep cooler and provide robust support but can feel bouncy and hard. Hybrids provide the cradled feel without the bounce and sleep cooler.
Simba Hybrids® uniquely have microspring Aerocoil® layers at the top of the mattress. These provide our unique Simba feel and so you feel ultimately comfortable, supported and cool.
Foam
Simba Hybrid®
Spring
The Simba Hybrid® Ultra Mattress is 34cm deep and includes 4 carry handles. We’ve used responsibly sourced materials where possible, and specialist removal and recycling is available via our trusted third partner.
530g knitted polyester top cover (due to updated covers fabric spec may vary slightly between 02/24 and 11/24) with zip-off, washable sleep surface and Stratos® technology.
133g knitted polyester internal cover to protect mattress layers when top cover is removed for washing
(250gms) Wool (80%), charcoal-infused bamboo (10%), & kapok fibres (10%).
CertiPUR™ certified Simbatex® foam (graphite infused).
CertiPUR® foam border, conical Aerocoil™ pocket springs, manufactured in Leeds from titanium alloy and high-carbon steel, enclosed in a polypropylene pocket.
Latex and coconut fibre blend.
CertiPUR® foam.
CertiPUR® foam border; up to 2,500 Aerocoil® springs manufactured in Leeds from high-carbon steel, enclosed in a polypropylene pocket. (high carbon steel)
Up to 1000 barrel springs made from high carbon steel
CertiPUR® foam base
4 handles for ease of movement.
Rotate your mattress once a month for the first three months, then every three months or seasonally thereafter.
Top cover: the top section of the outer cover can be zipped off and washed at 40°C on a reduced spin cycle, then line dried (If it can’t be washed/dried/replaced in the same day, the inner fabric cover is suitable to sleep on.)
Base cover: the grey base fabric can be cleaned with a soft, damp, clean cloth using small circular motions.
Our products that carry the GenM Menopause Friendly symbol can ease, relieve or support one or more of the 48 signs of menopause.
Proud to be a B Corp.
We’re determined to have a positive impact, socially and environmentally.
A responsible sleep.
We use CertiPUR® foam and include recycled materials where possible.
Less to landfill.
Simba mattresses are suitable for recycling or refurbishment via specialist providers.
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We strive to deliver the best possible products and services.
Reviews attributed to a model of a product or to services reflect reviews left for previously offered design iterations of a model of product or a service, as well as the optimised and improved iteration of the product or service offered today.
This summary was created by AI, based on recent reviews.
The Simba Hybrid® Ultra Mattress is consistently praised for delivering a supremely comfortable and luxurious sleep experience, offering a transformative improvement for many users. Its construction is noted for its superb support and plush comfort, creating a sensation often described as sleeping on a cloud, which has significantly eased aches and pains, particularly in the back and hips, for a multitude of customers. Reviewers highlight its ability to regulate temperature effectively, ensuring a consistently cool and undisturbed night's rest, and its excellent motion isolation makes it ideal for couples. The overall consensus is that this mattress represents a worthwhile investment in one's well-being, providing unparalleled comfort and a truly restful night's sleep.
