Silentnight Essentials Pocket 600 Mattress

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

This is a sensible pick if you want a proper pocket spring mattress without spending a fortune. It comes in UK Single, Small Double, Double and King sizes, at a price that's good value for zoned springs rather than a basic open coil. The medium firmness suits most sleeping positions, although it's a simpler build than pricier models, with a fibre comfort layer rather than deep foam or padding. Yes, 24cm is slightly shallower than some mattresses, but that also makes it easier to handle and fit standard sheets. Silentnight's own site lists delivery in 14 days, a 60-night trial and a 5-year guarantee, which gives you room to change your mind.

Budget buyers
Sitting at the affordable end of Silentnight's range, it gives you zoned pocket springs rather than a basic open coil, which is good value for the money.

Eco-conscious buyers
The top layer uses sustainable Eco Comfort Fibres, which means you get a breathable surface made with more thought for the environment.

Warm sleepers
A fibre comfort layer over a single layer of pocket springs gives a breathable feel, which helps if you tend to heat up overnight.

Guest rooms
At 24cm deep it is easy to handle and fits standard sheets, and the medium firmness suits most sleeping positions for visitors.

Combination sleepers
Medium firmness suits most sleeping positions, so if you shift between your side, back and front through the night, it should feel comfortable throughout.

If you like a plush, deep-cushioned feel, the fibre comfort layer here is fairly modest, so you may find it a little firm on the surface. It's also single-sided, so anyone who prefers a flippable, double-sided mattress should look elsewhere. Heavier sleepers wanting extra-deep support layers may want a more substantial build.

Is the Silentnight Essentials Pocket 600 single or double sided?

It's single-sided, so you never need to flip it. Silentnight's product page advises rotating it head to toe instead, which helps the comfort layer wear evenly over time.

How firm is the Silentnight Essentials Pocket 600?

Silentnight rates it as medium. That's a middle-of-the-road feel that suits most back and side sleepers, although lightweight side sleepers may find the fibre top a little firm.

Does the Silentnight Essentials Pocket 600 come with a trial?

Bought from Silentnight's own site, it comes with a 60-night trial and a 5-year guarantee, with delivery listed at 14 days. Terms may differ if you buy through a retailer, so check before you order.

How deep is the Silentnight Essentials Pocket 600 mattress?

It's 24cm deep, and that depth is consistent across every size. Standard fitted sheets should fit without any trouble.

What sizes does the Silentnight Essentials Pocket 600 come in?

It's available in UK Single, Small Double, Double and King.