Silentnight Essentials Mirapocket 1000 Mattress

Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.

This is a mattress for buyers who want a recognisable brand and proper pocket springs without spending serious money. The medium firmness suits most back and side sleepers, giving enough give at the shoulder and hip while keeping your spine reasonably level. The recycled fibre fillings are a genuine plus if sustainability matters to you, and the Silentnight brand holds B-Corp certification. Yes, the fillings are fibre rather than foam or natural materials, but that keeps the price down and helps airflow, which hot sleepers will appreciate. Mattress Online lists a 100-night trial (which requires buying a mattress protector from them) and a 5 year guarantee, terms that apply to purchases from that retailer.

Side sleepers
Medium firmness and independently moving pocket springs give enough give at the shoulder and hip, so your body can sink in where it needs to.

Back sleepers
The medium feel keeps your spine reasonably level, while 1000 individual springs follow your body shape and support the curve of your lower back.

Warm sleepers
A breathable knitted cover and a recycled fibre comfort layer help airflow, so heat is less likely to build up against you overnight.

Eco-conscious buyers
The comfort layer uses Eco Comfort Fibre made from recycled materials, and the vegan-friendly fillings avoid animal-derived materials, with Silentnight holding B-Corp certification.

Allergy sufferers
Being hypoallergenic, this mattress is a sensible pick if you want bedding that suits sensitive sleepers, with a breathable fibre filling rather than foam.

If you prefer a distinctly firm or plush surface, the medium feel here won't suit. If you prefer memory foam contouring, this might not be the best choice either, as the fillings are fibre. Some owners mention the lack of handles, so if you rotate your mattress often, that's a small but real annoyance.

Is the Silentnight Mirapocket 1000 firm or soft?

It's a medium. That places it in comfortable territory for most back and side sleepers, offering give at pressure points with support underneath. If you're a heavier person who prefers a properly firm surface, or a lightweight sleeper who likes a soft, sink-in feel, it may not be the right match.

How many springs does the Mirapocket 1000 have?

It contains 1000 individual pocket springs, each sealed in its own fabric pocket and strengthened by polyester walls. Because the springs move independently, the mattress follows your body shape and helps limit motion transfer, useful if you share a bed with a restless partner.

Does the Silentnight Mirapocket 1000 come with a trial?

Mattress Online lists a 100-night trial with this mattress, though it requires buying a mattress protector from them, and the trial is that retailer's own offer rather than a Silentnight guarantee. If you buy elsewhere, check that retailer's returns terms before ordering.

How long is the guarantee on the Mirapocket 1000?

The Mattress Online listing states a 5 year guarantee. As this appears on a retailer's page rather than Silentnight's own site, confirm the guarantee terms with whichever retailer you buy from.

Is the Silentnight Mirapocket 1000 good for hot sleepers?

It should cope well. The Eco Comfort Fibre fillings and knitted microquilted cover are both designed for airflow and breathability, and fibre generally holds less heat than memory foam. No mattress can guarantee a cool night, but the construction here works in your favour.