# Slily 12 Inch Pocket Sprung Hybrid Mattress, 30 cm

Source: https://www.ranked10.co.uk/home/best-super-king-mattresses/slily-super-king-hybrid-mattress
Ranked #4 in "Best Super King Mattress 2026: 10 Ranked, One Claims 2,000 Springs": https://www.ranked10.co.uk/home/best-super-king-mattresses

- Price: £220.99 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.5 from 1,077 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0D4Q37Y6Y?tag=ranked10-21

slily's 12 inch super king mattress is a hybrid: a pocket sprung base with a memory foam top layer over it. It is sold at £220.99 in a 180 x 200 x 30 cm size and it takes fourth place in this guide. The listing describes a 7-zone spring system, a medium firm feel, reinforced edges, a 3D breathable knitted cover and a maximum weight capacity of 250 kg. It carries a 4.5 rating from 1,077 Amazon customer ratings.

The coil claim is the number that sets this listing apart: 2,000 pocketed coils, against the 868 claimed by the mattress at £143.64 and the 600 claimed by the £829 one. The same listing then states an item weight of 17 g and item dimensions of 100 x 30 x 30 centimetres, which do not sit comfortably with a 180 x 200 x 30 cm hybrid. Everything on this page is taken from the Amazon listing itself. We have not tested this mattress.

## Specification

| Field | Value |
|---|---|
| Price | £220.99 |
| Amazon rating | 4.5 out of 5 from 1,077 ratings |
| Claimed mattress coils | 2,000 pocketed coils (as listed) |
| Item weight | 17 g (as listed) |
| Number of layers | 2 |
| Construction | Hybrid — pocketed coil base with memory foam top layer |
| Size | Super king, 180 x 200 x 30 cm |
| Maximum weight capacity | 250 kg |

## Questions people ask

**How many pocket springs does the slily mattress have?**

The listing states 2,000 pocketed coils, the highest coil count claimed by any hybrid in this guide.

**How much does the slily 12 inch super king mattress weigh?**

The Item Weight field says 17 g, which does not fit a 180 x 200 x 30 cm hybrid mattress, and no other weight is given in the listing.

**Is the slily mattress medium or firm?**

It is described as medium firm, with Medium given under Firmness Description, and a memory foam top layer over the pocket springs.

**What is the maximum weight the slily mattress supports?**

The listing gives a maximum weight capacity of 250 kilograms.

**Does the slily mattress arrive rolled up?**

Yes. It is shipped compressed, vacuum-sealed and rolled; the listing asks you to wait 2-3 days after opening, keep the room ventilated, and allow a week to get used to it.

**Is there a trial period on the slily mattress?**

The listing mentions a 100 night trial for the 180 x 200 cm mattress.