TheraPur ActiGel Arctic 3000 Combination King Size Mattress
Therapur

TheraPur ActiGel Arctic 3000 Combination King Size Mattress

The TheraPur ActiGel Arctic 3000 Combination Mattress combines a graphite-infused cooling cover with zoned ActiGel foam and pocket springs, which means firm support with pressure relief and less heat build-up.

  • Firm feel for supportive sleep
  • Graphite-infused cover keeps you cooler
  • Minimises partner disturbance

£1,439

Size: King Size. Available at Dreams

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Where can I buy the TheraPur ActiGel Arctic 3000 Combination King Size Mattress?

Below are the best prices for the TheraPur ActiGel Arctic 3000 Combination Mattress in a King Size. Available from (9) trusted retailers.

TheraPur ActiGel Arctic 3000 Combination Mattress

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Prices last checked:
3rd November 2026

Mattress dimensions for the TheraPur ActiGel Arctic 3000 Combination 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 TheraPur ActiGel Arctic 3000 Combination King Size Mattress

Mattress

TheraPur ActiGel Arctic 3000 Combination Mattress

Size

UK King (5ft x 6ft 6in)

Firmness

Firm

Construction

  • Foam

  • Gel

  • Hybrid

  • Pocket Spring

Depth (cm)

Layers

Layer Details

Key benefits

Key Benefits of the TheraPur ActiGel Arctic 3000 Combination King Size Mattress

  • More room each than a double: Each sleeper gets 75cm, which means 7.5cm more each than the UK double, enough that an elbow or knee is less likely to land on your partner.
  • Length for taller sleepers: At 200cm long, the UK king adds 10cm over the UK double, so a partner over six foot is less likely to end up with feet hanging off the end.
  • Fewer wake-ups on split schedules: Pocket and micro springs soak up movement, and on a bed this wide an early riser getting up is a little less likely to wake the one still asleep.
  • Firm, flat support across both halves: The firm rating gives a flat surface edge to edge, which suits two back sleepers who want the same steady support on both sides of the bed.
  • A cooler surface when sharing: Two bodies make a bed warmer, so the graphite-infused ActiCool+ cover, designed to keep the surface cooler, helps couples where one partner tends to wake up hot.
  • Fits rooms a super king won't: We suggest at least 2.7m x 2.9m for the UK king, compared with at least 3m x 2.9m for the UK super king.

Who should buy the TheraPur ActiGel Arctic 3000 Combination King Size Mattress?

This size suits you if...

You share the bed every night, one of you leaves for work hours before the other, and you've started to notice every turn and early alarm. It also suits you if one partner is close to or over six foot and the UK double's length has started to feel short, and you both prefer a firm, flat surface.

Consider another size if...

Your bedroom is under our suggested 2.7m x 2.9m, or you sleep alone. For a smaller room 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 TheraPur ActiGel Arctic 3000 king size big enough for a couple?

For most couples, yes. The UK king gives 75cm each for two sharing, 7.5cm more each than the UK double. If you want more space than that, the UK super king gives 90cm each, although it needs a larger room.

Will a tall person fit on the TheraPur ActiGel Arctic 3000 UK king?

The UK king is 200cm long, which is 10cm more than the UK double, UK small double and UK single. That extra length helps anyone approaching or over six foot. The UK super king is the same length, so sizing up only adds width.

What size bedroom do I need for a UK king TheraPur ActiGel Arctic 3000?

We suggest at least 2.7m x 2.9m, with 3.2m x 3.2m comfortable. A new build master bedroom can feel smaller than it looks once fitted wardrobes are in, so measure the floor space you'll actually have left rather than the room's listed size.

Should I get the UK king or UK super king TheraPur ActiGel Arctic 3000?

The UK king is 30cm narrower than the UK super king and the same length, giving 15cm less each. Choose the UK super king if a dog regularly shares the bed or you want maximum separation and have at least 3m x 2.9m. Otherwise the UK king suits most couples.

Will I feel my partner move on the TheraPur ActiGel Arctic 3000 in a king size?

Less than on many beds. The pocket springs and micro springs soak up movement, so a partner turning over or getting up early is less likely to wake you. On the UK king you also get 7.5cm more each than on the UK double, which puts a little more distance between you when your schedules don't match.