Silentnight Every Season 1000 Mattress

Assessed from Silentnight's published specification for this mattress, captured October 2026, and from regular price comparison across our UK retail partners.

The main draw is the two sides. The summer side has a cool-to-touch fabric, and the graphite-infused memory foam is there to keep hot sleepers cooler, so you can flip to the winter side when nights turn colder. Silentnight says the 1000 Mirapocket springs adjust to movement, which suits sleepers who shift around. The sink-in foam is aimed at people who want cushioning for aches and pains, although how it feels will depend on your weight and sleeping position. Silentnight rates it medium, so it should suit most sleepers who want a middle-of-the-road feel.

Warm sleepers
The cool-to-touch summer side and graphite-infused memory foam are there to keep you cooler, and you can flip to the winter side when nights turn colder.

Combination sleepers
The 1000 Mirapocket springs adjust to movement, which suits anyone who shifts around in the night and wants the surface to keep up.

Couples
A UK double, king and super king size range gives two people room to choose from, while the springs adjust to movement as each of you turns.

If you prefer sleeping on a firm mattress, this might not be the best choice. It's rated medium, and the sink-in foam gives a more cushioned feel than a springy, traditional one. Anyone who wants to stay on top of the surface, rather than settle into it, may find it too soft. Silentnight doesn't publish a firmness difference between the two sides.

How firm is the Silentnight Every Season 1000?

Silentnight rates it medium. The sink-in memory foam adds a cushioned feel, so it suits sleepers who want some give, but anyone after a firm, springy surface may want something different.

What sizes does the Silentnight Every Season 1000 come in?

It comes in a UK double (135 x 190cm), UK king (150 x 200cm) and UK super king (180 x 200cm). Silentnight doesn't list smaller sizes, so single sleepers will need to check other models.

How deep is the Silentnight Every Season 1000?

Silentnight gives a depth of 29cm. It doesn't break that down by size, so it's worth checking your bed frame and sheets will suit a mattress of that depth.

Is the Silentnight Every Season 1000 good for hot sleepers?

It's designed with them in mind. The summer side has a cool-to-touch fabric and the memory foam is graphite-infused to keep you cooler, although how cool you feel will still vary from person to person.

Does the Silentnight Every Season 1000 come with a trial?

Yes, Silentnight offers a 60-night trial on its own website. Check the brand's terms before you buy, as they set out how returns work if you decide it isn't right for you.