The Simba Hybrid Inter 1500 Pocket Mattress is a lovely build at a price I'd make you wait for. It's a 23cm hybrid of Simbatex foam over 1500 of Simba's Aerocoil springs and a seven-zone foam base, graded medium to firm. Buy it in a sale if you sleep on your back or front at an average weight. Heavier sleepers and anyone who wants deep springs under them should look elsewhere.
This listing used to be a foam mattress
Read the reviews with care. This listing was the Simbatex Essential Foam, a foam-only mattress with no springs at all, and Mattress Online now sells this hybrid on it instead. The handful of owner reviews reach back years, one describing a dip after long use, so they belong to the foam bed and tell you nothing about this one. The construction is the evidence here, and it's a construction I like.
Small springs near the top, foam doing the lifting
Aerocoils are Simba's own design. Simba's pages describe them as 25mm conical microsprings in titanium alloy, placed near the top of the mattress. I'm usually rude about mini springs, because most makers use them to pad a spring count, but Simba is the exception I make. Here they sit under graphite-infused Simbatex, giving the surface a light bounce and a little airflow, and that feel is why people love the brand. Underneath, your weight is carried by the zoned CertiPUR foam rather than a full-height spring unit.
My own bed, the Origin Hybrid Pro, also puts microsprings near the top, but it sits them over a full spring unit and stands 31cm deep. A heavier sleeper would feel that difference. The Inter is 23cm with foam taking the load, which suits an average back sleeper well and a heavy one less so. The knitted cover unzips and washes at 40 degrees, and it's single-sided, so you rotate it monthly with the handles.
Who it suits, and who it doesn't
Back and front sleepers of average weight are the match, because medium to firm on a foam base keeps your hips level. Avoid it if you're over about eighteen stone, if you're a light side sleeper whose shoulder needs to sink further, or if you'd rather a mattress you can turn. Register the warranty when it arrives, because Simba's full cover only applies once you have, and keep the paperwork somewhere boring and findable.
What to buy instead
Wait for a sale, and judge the sale price against other hybrids, never against the "was" figure. The Simba Hybrid Essential 1000 a rung down is 20cm, with mini pocket springs and memory foam. If the price never comes down far enough, or you want deep springs under you, stay at Mattress Online and buy the Luna 6000 Support Gel Memory Pocket Hybrid: full-height pocket springs under gel memory foam, 27cm deep, the same medium to firm, and a budget buy. If it's the Simba feel you're set on, Simba's own Hybrid, sold direct, is 25cm with up to 1,900 Aerocoils, and Simba's trial refunds and collects instead of swapping, which is why I'd usually buy from the brand.
