Otty vs Simba vs REM-Fit
Two popular UK hybrids, compared honestly on price, springs, foam depth and cooling, alongside a third that packs in more pocket springs, the longest trial and guarantee, and the lowest price. Every figure below is sourced and verified.
The 20-second verdict
Otty and Simba are both strong hybrids, Otty the firmer and keenly priced, Simba bouncier but the dearest here. The REM-Fit 3000 Supreme matches them for build, with more pocket springs (3000), a 5cm zoned comfort layer, a 200-night trial and a 15-year guarantee, at £479.99 for a king, under both.
Three hybrids, side by side
Each brand's mainstream hybrid, UK king size, typical sale price (verified June 2026).
- ✓ Up to 2000 full-size 16cm pocket springs
- ✓ CoolBlue gel foam + AirFlow
- • 100-night trial
- • 10-year guarantee
- • 25cm · medium-firm (7/10)
- ✓ 3000 tall dual-layer pocket springs
- ✓ 5cm zoned open-cell comfort layer
- ✓ 200-night trial
- ✓ 15-year guarantee
- ✓ Free 2-man, room-of-choice delivery
- ✓ Graphite Simbatex foam
- ✓ 200-night trial
- • 10-year guarantee
- • 25cm · medium-firm feel
- • ~1,900 25mm micro-springs + base
The full spec sheet
Where a rival genuinely matches or beats us, we say so. "Tie" means no meaningful difference for most sleepers.
| Feature | OttyOriginal Hybrid | REM-Fit3000 Supreme | SimbaHybrid |
|---|---|---|---|
| Price (UK king, typical) | £605 | £479.99 Best price | £899 |
| Feel | Medium-firm (7/10) | Medium (6/10) | Medium-firm |
| Total depth | 25cm | 25cm Tie | 25cm |
| Pocket springs | Up to 2000 full-size 16cm pocket springs | 3000 dual-layer, tall 15cm pocket springs Most springs | ~1,900 25mm Aerocoil micro-springs + up to 1,000 base |
| Comfort foam layer | CoolBlue gel memory foam + reflex (single depth not specified) | 5cm zoned open-cell comfort foam confirm vs rivals | Simbatex + foam (single depth not specified) |
| Cooling | CoolBlue gel + AirFlow perforations | Open-cell memory foam Tie | Graphite-infused Simbatex |
| Sleep trial | 100 nights | Up to 200 nights Longest | 200 nights |
| Guarantee | 10 years | 15 years Longest | 10 years |
| Foam certification | CertiPUR & Europur | CertiPUR Tie | CertiPUR |
| Delivery | Doorstep; room of choice & old-mattress removal extra | Free 2-man, room of choice Best service | Free to door |
| Returns | Free collection & refund | Free collection · donated to British Heart Foundation | Free collection & refund |
All three count springs differently: REM-Fit's 3000 (15cm) and Otty's up to 2000 (16cm) are full-size pocket springs, while Simba's headline ~1,900 are 25mm Aerocoil micro-springs over a base layer. REM-Fit leads on count; Otty's full-size springs are marginally taller. Both REM-Fit and Otty publish their counts.
Who wins each category
Price & value
REM-FitAt £479.99 for a king, REM-Fit is the cheapest of the three, around £125 under Otty's typical king price and £420 under Simba's. Otty is keenly priced too; Simba is the dearest here.
Springs & support
REM-FitREM-Fit packs in 3000 tall dual-layer pocket springs, against Otty's up to 2000 and Simba's ~1,900 micro-springs. REM-Fit and Otty both use full-size springs (Otty's marginally taller at 16cm); Simba relies on 25mm micro-springs over a base. REM-Fit leads on count.
Comfort layer
REM-FitREM-Fit publishes a 5cm zoned open-cell comfort layer. Otty and Simba use multi-layer foam stacks but don't break out a single comfort-layer depth, so REM-Fit is the only one giving you a clear number.
Sleep trial
REM-FitREM-Fit and Simba both give you 200 nights to decide; Otty gives 100. If you want longer to be sure, REM-Fit matches the most generous trial on test.
Guarantee
REM-FitREM-Fit covers every mattress for 15 years. Otty and Simba both stop at 10, five fewer years on a purchase you'll keep the best part of a decade.
Feel
TieAll three sit on the firmer side of medium. Otty is the firmest (7/10), Simba medium-firm, REM-Fit a true medium (6/10). Feel is personal, which is why the home trial matters.
Cooling
TieOtty uses CoolBlue gel and an AirFlow system, Simba uses graphite Simbatex, REM-Fit uses open-cell memory foam. All three sleep cooler than traditional memory foam.
Which one is right for you?
We'd rather you buy the right mattress than the wrong REM-Fit. The straight answer:
Choose Otty if…
You want the firmest feel of the three (7/10) with tall full-size springs, and a 100-night trial is enough time for you.
Choose Simba if…
You prefer the bouncy Aerocoil micro-spring feel and a medium-firm surface, and don't mind paying the most.
Choose REM-Fit if…
You want the most pocket springs, a published deep comfort layer, the longest trial and guarantee, at the lowest price.
Up to 200-Night Trial
A risk-free sleep trial on all our mattresses.
Free Delivery
Free room-of-choice delivery. Old mattress disposal available.
15-Year Guarantee
We're so confident, we offer a 15-year guarantee.
More springs, longer cover, lower price.
Try the REM-Fit 3000 Supreme for up to 200 nights. If it's not right, we collect it free and refund you in full.
Otty vs Simba vs REM-Fit FAQs
Is Otty or Simba better?
Otty is firmer (7/10) with up to 2000 full-size 16cm pocket springs and a 100-night trial. Simba is medium-firm with around 1,900 Aerocoil micro-springs and a 200-night trial. Both carry a 10-year guarantee, so it comes down to firmness preference and how long you want to trial it.
Which has more pocket springs?
The REM-Fit 3000 Supreme uses 3000 dual-layer pocket springs and Otty up to 2000, both full-size. Simba uses around 1,900 25mm Aerocoil micro-springs over a base layer. REM-Fit leads on count.
Why is the REM-Fit cheaper?
REM-Fit sells direct and doesn't carry the heavy national advertising spend of the larger brands, reflected in the price, not the build. You still get 3000 pocket springs, a 5cm open-cell comfort layer, a 200-night trial and a 15-year guarantee.
Which has the longest trial and guarantee?
REM-Fit and Simba both offer a 200-night trial; Otty offers 100. On the guarantee, REM-Fit leads with 15 years, versus 10 from Otty and Simba.
Do all three sleep cool?
Yes. Otty uses CoolBlue gel and an AirFlow system, Simba uses graphite Simbatex, and REM-Fit uses open-cell memory foam. All three improve airflow over traditional memory foam.
