Hyde & Sleep 360 Cool Graphite Foam Rolled King Size Mattress
Hyde & Sleep

Hyde & Sleep 360 Cool Graphite Foam Rolled King Size Mattress

The Hyde & Sleep 360 Cool Graphite Foam Rolled Mattress uses Aurora airflow foam infused with cooling graphite, which means it's built to keep heat from lingering while you sleep.

  • Airflow foam helps you sleep cooler
  • Five zones for targeted support
  • Spring-like feel with foam cushioning

£769

Size: King Size. Available at Dreams

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Where can I buy the Hyde & Sleep 360 Cool Graphite Foam Rolled King Size Mattress?

Below are the best prices for the Hyde & Sleep 360 Cool Graphite Foam Rolled Mattress in a King Size. Available from (9) trusted retailers.

Hyde & Sleep 360 Cool Graphite Foam Rolled Mattress

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Prices last checked:
6th November 2026

Mattress dimensions for the Hyde & Sleep 360 Cool Graphite Foam Rolled King Size Mattress

Length: 200cm

Width: 150cm

(5ft x 6ft 6in)

Minimum room size: 2.7m x 2.9m

Mattress details

Mattress Details for the Hyde & Sleep 360 Cool Graphite Foam Rolled King Size Mattress

Mattress

Hyde & Sleep 360 Cool Graphite Foam Rolled Mattress

Size

UK King (5ft x 6ft 6in)

Firmness

Construction

  • Foam

  • Rolled

Depth (cm)

Layers

Layer Details

Key benefits

Key Benefits of the Hyde & Sleep 360 Cool Graphite Foam Rolled King Size Mattress

  • More room each than a double: Two people sharing get 75cm each, which is 7.5cm more each than the UK double and enough to stop you sleeping shoulder to shoulder.
  • Space when your schedules clash: If one of you is up hours before the other, the extra width gives a little more distance between you as they climb out in the dark.
  • Length for taller sleepers: At 200cm (6ft 6in), the UK king is 10cm longer than the UK double, so a partner over six foot has room to stretch without their feet hanging off.
  • Cooling foam across the whole bed: The graphite-infused airflow foam covers the full 150 x 200cm, which should help if sharing a bed usually leaves you both feeling slightly warm.
  • Easier to get up the stairs: It arrives rolled, so you carry a compact package up a narrow staircase rather than manoeuvring a flat 150 x 200cm mattress around the landing.

Who should buy the Hyde & Sleep 360 Cool Graphite Foam Rolled King Size Mattress?

This size suits you if...

You share the bed every night and one of you is up hours before the other, so a little extra distance helps, or one partner is over six foot and has simply run out of length on a UK double.

Consider another size if...

Your bedroom is under our suggested minimum of 2.7m x 2.9m, which can happen in a new build once wardrobes are in. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.

FAQ's

Frequently Asked Questions About the UK King

Is the Hyde & Sleep 360 UK king big enough for two people?

Yes, for most couples. The UK king gives 75cm each for two sharing, compared with 67.5cm each on the UK double, so you gain 7.5cm of personal space every night. If one of you sprawls or a dog joins you regularly, you'll still feel a little short on room, but there's no larger size of this mattress.

How long is the UK king Hyde & Sleep 360 for tall sleepers?

It measures 200cm long, or 6ft 6in. That's 10cm longer than the UK double, which is often the real reason taller couples upgrade. If one of you is over six foot and your feet reach the edge of your current bed, the extra length of the UK king will make more difference than the width.

What room size do I need for a UK king mattress?

We suggest allowing at least 2.7m x 2.9m, with 3.2m x 3.2m feeling comfortable once you add bedside tables on both sides. Measure after wardrobes and radiators are accounted for, because a new build master bedroom often shrinks noticeably once furniture goes in.

Does the Hyde & Sleep 360 come in a super king?

No. The UK king is the largest size Hyde & Sleep makes this mattress in. A UK super king would give 90cm each for two sharing, so if you need that much space you would have to look at a different mattress altogether.

What size duvet and sheets fit the Hyde & Sleep 360 in a UK king?

Standard king sheets fit the 150 x 200cm surface, and a 230 x 220cm king duvet covers it well for two. Hyde & Sleep doesn't publish a depth for this mattress, so check the pocket depth on fitted sheets against the mattress once it has fully expanded.