Simba Sleep

Simba Sleep: hybrid mattresses and sleep technology

Simba Sleep is a British company dedicated to the design and sale of mattresses, beds and sleep accessories. Its catalogue is built around two mattress families —Hybrid® and Natural Hybrid®— which incorporate layers of foam and patented springs, as well as a range of complementary products such as pillows, duvets, protectors, bedding and furniture. The company operates mainly through its online store, simbasleep.com, and has a network of physical retail outlets in the UK.

Two mattress ranges and proprietary technology

The Hybrid® range stands out for incorporating the company's patented Aerocoil® titanium alloy springs, which respond to body movement to provide support and ventilation. As you move up the range, the number of springs increases and layers of innovation are added. The top-of-the-range model, the Simba Hybrid® Ultra, has up to 7,300 springs and includes exclusive layers such as CoolFusion™, with a blend of kapok, wool and bamboo, and PureLift®, a combination of latex and coconut for resilient support.

The Natural Hybrid® range consists of three mattresses that combine natural materials and also incorporate Aerocoil® springs. The company explains that the difference between the two families lies in the layers and the number of springs, while maintaining the patented spring technology in all cases.

Among the standout technologies are Simbatex® foam, which according to Intertek tests from May 2025 offers more than five times more airflow than memory foam from leading UK manufacturers, with graphite that diffuses heat; and Stratos®, a cool-touch fabric that, according to HeiQ tests from November 2020, can be up to 3 °C cooler than an untreated fabric, with an instant and all-night cooling effect.

Product and accessory catalogue

In addition to mattresses, Simba sells beds, pillows —including a height- and firmness-adjustable pillow—, duvets, mattress protectors, bedding, furniture and loungewear. The site also shows a section of refurbished products. The prices shown in the catalogue at the time of analysis reflect promotional discounts: for example, the Hybrid® Pro mattress appeared from £629.30 (previously £899) and the Hybrid™ pillow at £81.75 (previously £109).

Purchase and after-sales services

The company offers free shipping and free returns, with next-day delivery on selected products for orders placed before 1 pm, including weekends. Mattresses and beds come with a 200-night risk-free trial and a 10-year guarantee. It also has interest-free finance options (0% APR) and instalment payments of up to four years, subject to affordability, age and status, with a minimum spend. Simba Sleep Limited is authorised and regulated by the Financial Conduct Authority (FCA) as a credit broker, not a lender, with registration number 742009, and offers credit products from a panel of lenders including Secure Trust Bank PLC, which operates as V12 Retail Finance.

The company also sells a five-year accident insurance for mattresses and beds, covering food or drink spills, ink marks, make-up, accidental damage caused by pets, burns from hot appliances, rips and tears, and damage to the frame. Deliberate damage, general wear and tear, accumulation of damage or staining, structural or manufacturing defects, and damage from incorrect cleaning products are excluded. The stated cost for this cover was £22.

Discounts for professional groups

Simba Sleep offers verified discounts of up to 31% for certain groups: healthcare, NHS and social care staff; emergency services and military; education sector; charity sector; students and young people; and carers and the disabled community. Each discount requires eligibility verification.

Awards and ratings

The company states it has over one million customers and more than 350,000 five-star reviews. In the Which? awards it has received Best Buy distinctions for the hybrid pillow, the 3-in-1 duvet, the essential topper and the hybrid mattress, as well as Value Buy for the Cool Foam mattress. Simba Sleep presents itself as a certified B Corp sleep brand.

Sustainability and corporate structure

The company states that protecting the planet is as important as a good night's sleep and has a mattress recycling service called Simba Dreamspace. The parent company, Simba Sleep Limited, has its registered office at 5th Floor Halo, Counterslip, Bristol BS1 6AJ, with company number 9703422 and VAT number 230194343. The company operates in the UK and Canada.