Simbasleep
Award-winning sleep technology for mattresses and beds
Last updated on 16th September 2026
About Simbasleep
Mattresses, beds, pillows and duvets sold direct to UK households, aimed at people prepared to spend a little time choosing sleep kit rather than grabbing whatever's in stock at the local shop. The range runs from entry-level foam through to engineered hybrid systems, with sizing and firmness options built around a stated medium-firm feel that the brand says suits most sleepers.
The core line is the Hybrid range, including the Hybrid® Pro mattress alongside a Natural Hybrid® collection, built around Aerocoil® titanium alloy pocket springs paired with Simbatex® foam for airflow and graphite for heat diffusion. Bedding carries the same naming, with the Hybrid™ Pillow and Hybrid™ Duvet, and fabrics treated with Stratos® cool-touch technology for a lower surface temperature. Beyond mattresses and duvets, the catalogue covers beds, toppers, bedding sets, loungewear and a refurbished range for buyers wanting the same technology at a reduced cost.
Simba sells mainly online from its Bristol head office, backing mattress and bed purchases with a 200-night home trial and a 10-year guarantee, and also supplies through a network of stockists for those who want to test a mattress in person before ordering. It has held B Corp certification and runs a mattress recycling service for old bedding, whether or not it was bought from Simba.
What Simbasleep sells
- Mattresses
- Beds
- Pillows
- Duvets
- Toppers
- Bedding
Highlights from Simbasleep
Hybrid® Pro Mattress
A layered mattress combining Simbatex foam and titanium Aerocoil springs for tailored support and airflow.
Hybrid™ Pillow
An adjustable pillow that lets sleepers set their own height and firmness.
Hybrid™ Duvet
A duvet treated with Simba's Stratos cool-touch technology for a cooler feel through the night.
Simbasleep delivery, returns and warranty
- Delivery
- Free delivery to most UK postcodes, 7am-7pm; surcharges apply to non-mainland UK and Highlands
- Returns
- 200-night trial for mattresses, beds and toppers; 30-day returns for bedding and accessories
- Warranty
- 10-year guarantee on mattresses, toppers and beds
- Based in
- United Kingdom
Questions about Simbasleep
How firm is the simbasleep Hybrid mattress?
The Hybrid mattress is medium-firm overall, which Simba says independent research shows suits most sleepers, though it can feel different from an old mattress at first. Simba recommends spending time getting used to it, which is part of why the 200-night trial exists.
What technology is inside the simbasleep Hybrid mattress?
The mattress combines Simbatex foam, an open-structure foam infused with graphite to diffuse heat, with patented Aerocoil titanium alloy springs that respond to the sleeper's body for tailored support and airflow. Simba states the foam offers over five times more airflow than standard memory foam.
Can I adjust the firmness of the simbasleep Hybrid pillow?
Yes, the Hybrid pillow is customisable so buyers can set it to their preferred height and firmness. This is designed to suit different sleeping positions and preferences.
Is a mattress dip in my simbasleep mattress a fault?
Not necessarily; Simba explains that some dipping is natural settlement as the layers mould to a sleeper's body, similar to a sofa cushion compressing over time. Simba provides a tolerance table by mattress age, and only dips beyond those levels are treated as a possible defect.
Does the simbasleep Hybrid duvet use cooling technology?
The Hybrid duvet uses Stratos cool-touch technology, which Simba says keeps the fabric up to 3°C cooler than untreated fabric through both instant and continuous cooling action.
How long does simbasleep delivery take?
Simba offers free next day delivery to most of the UK for mattresses and beds when ordered before 1pm, with premium beds taking up to 10 working days. Non-mainland UK and Highland addresses can take up to 14 days, and made-to-order products up to 3 weeks.
How do I return a simbasleep mattress?
Returns can be requested via an online form using the order number and email address, and the customer care team responds within 48 hours. Simba may ask for photos of the mattress to help assess the issue and direct it correctly for recycling, refurbishing or donation.
Does simbasleep charge extra for delivery to remote areas?
Yes, surcharges apply for non-mainland UK and Highland addresses, including £80 for orders with a mattress or bed and £7.50 for accessories-only orders via DPD. Some postcodes, including most Scottish islands and parts of the Highlands, cannot currently be delivered to at all.
What does the simbasleep 10-year guarantee cover?
The guarantee covers faults that could reasonably be said to have started with Simba, such as cracking foam, a faulty zip or significant dipping, but excludes ordinary wear and tear, soiling and accidental damage. Claims should be made within 30 days of spotting the problem, with proof of purchase.
When will I get my refund from simbasleep?
Once a returned item has been collected, Simba processes the refund, excluding any delivery fees, within 7 days of the collection date via the original payment method. Finance instalments already paid are refunded within 14 business days after the agreement is cancelled.
Alternatives to Simbasleep - Home & Furniture market
- Emma The UK's best-selling boxed hybrid, often chosen for its wide range of firmness options and long trial rather than any single cooling feature.
- Eve Sleep A similarly priced hybrid rival with a firmer, springier feel and a shorter track record than the more established competitor.
- Nectar An all-foam mattress at a lower price with a longer trial period and lifetime warranty, though without pocket springs for edge support.
- OTTY Uses a cooling gel layer over pocket springs at a similar price point, popular with hot sleepers wanting a firmer edge.
- Silentnight A long-established UK bedding manufacturer with cheaper sprung and hybrid models sold through high street retailers as well as online.
- Tempur A premium all-foam brand at a significantly higher price, chosen by shoppers prioritising pressure relief for joint or back pain over springy support.