Best Mattresses Under £600 In 2022 (king-size)

Best Mattresses Under £600

£600 is plenty to spend on a mattress, giving you access to hybrid and pocket-sprung mattresses superior to open coil models.

The best king-size mattresses have brilliant edge support, letting you sleep right up to the edge comfortably, and excellent motion isolation, minimising disruption when you or your partner gets in and out of bed.

This article runs through our favourite mattresses under £600 in 2022 based on real-world testing. We stock all the mattresses on our list and can vouch for their quality.

Let’s jump in!

Shire Beds Pennine Pillowtop

Medium (best for side sleepers)
Pocket sprung pillowtop

If we had to choose one mattress under £600, this is the one! The Shire Beds Pennine Pillowtop delivers sublime comfort with 5cm of memory foam and 1,000 pocket springs. The pillowtop provides a thicker layer of squishy material than a regular mattress, and the Egyptian cotton outer cover is lovely on the skin.

This mattress evokes a sense of sturdiness and deep comfort, with 4cm of soft foam helping transition the feel between memory foam and springs.

Sleepsoul Cloud

Medium (best for side sleepers)
Hybrid (memory foam and pocket springs)

The Sleepsoul Cloud is our top hybrid medium mattress under £600 because it’s perfectly engineered with four layers. The pocket spring bottom layer provides excellent support, while a 2cm memory foam layer above provides deep cushioning. The 1.5cm soft foam layer above provides responsiveness, making it easy to toss and turn.

We love this mattress’s squishy feel and stability. It has a medium feel, so it’s most suited to side sleepers and people weighing up to 180 lbs.

Giltedge Beds Asteria

Medium-firm (best for back sleepers)
Pocket sprung with memory gel for cooling

The Giltedge Asteria is our favourite medium-firm mattress under £600. It goes big on breathability and cooling, with memory gel for body contouring comfort without the heat, a breathable border, and a temperature-sensitive Damask cover. It also has 2,000 pocket springs for outstanding support.

The Asteria is best for back sleepers and people weighing up to 220 lbs, delivering brilliant support and comfort on the hottest nights.

Millbrook Beds Lavish 1,400

Firm (best for back sleepers and heavy people)
Pocket spring with chemical-free materials

If you want a natural, firm mattress, look no further than the Millbrook Beds Lavish. This mattress is handmade in Britain with edge-to-edge support and natural, chemical-free fillings, including cotton and wool, making it a top choice to reduce your carbon footprint. It has an ortho feel with little bounce.

This mattress oozes quality and provides extra firm support with 4,000 pocket springs - ideal for weighing over 220 lbs or like a solid mattress.

Sleepsoul Paradise Coolgel

Best Mattresses Under £600, Birlea Paradise Coolgel 5FT Kingsize Mattress — Pictured: Birlea Paradise Coolgel 5FT Kingsize Mattress

Medium (best for side sleepers)
Hybrid (pocket springs and memory gel)

The Sleepsoul Paradise is the perfect medium mattress for hot sleepers, costing less than £500! It has 600 pocket springs for support and 2cm of memory gel, dissipating body heat while giving you the pleasure of body contouring memory foam. The top cover is knitted and micro-quilted, making it super soft and lovely on the skin.

Despite its low price, this is a top-quality hybrid mattress - we highly recommend it if you like a cloud-like sleep and get warm quickly.

What to look for in a mattress under £600

Edge support – mattresses that lack edge support sink when you sleep at the edge, making you feel like you will roll off.
Spring type - £600 will net you pocket or micro-pocket springs, which are superior to open coil springs because they are independent.
Cooling qualities – at the very least, the mattress should be breathable. Memory foam struggles on hot nights because it retains heat. Look for mattresses with memory gel, or go for a natural filling to keep you cool.
Guarantee – The Shire Pennine, Millbrook Lavish, and Sleepsoul mattresses listed above have a 10-year guarantee. This is considered the best in the industry, but read the warranty limitations before buying.