Silentnight UltraGel 3000 Pocket Soft Super King Mattress
Silentnight

Silentnight UltraGel 3000 Pocket Soft Super King Mattress

The Silentnight UltraGel 3000 Pocket Soft is a hybrid mattress, which means it pairs pocket springs with a comfort layer for a mix of support and cushioning.

  • Genuinely soft pocket-sprung feel
  • Extra give at shoulders & hips
  • Also available in a firm version

£1,114.20

Size: Super King. Available at Archers Sleepcentre

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Where can I buy the Silentnight UltraGel 3000 Pocket Soft Super King Mattress?

Below are the best prices for the Silentnight UltraGel 3000 Pocket Soft Mattress in a Super King. Available from (9) trusted retailers.

Silentnight UltraGel 3000 Pocket Soft Mattress

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Prices last checked:
11th November 2026

Mattress dimensions for the Silentnight UltraGel 3000 Pocket Soft Super King Mattress

Length: 200cm

Width: 180cm

(6ft x 6ft 6in)

Minimum room size: 3m x 2.9m

Mattress details

Mattress Details for the Silentnight UltraGel 3000 Pocket Soft Super King Mattress

Mattress

Silentnight UltraGel 3000 Pocket Soft Mattress

Size

UK Super King (6ft x 6ft 6in)

Firmness

Soft

Construction

  • Pocket Spring

  • Hybrid

  • Gel

Depth (cm)

Layers

Layer Details

Key benefits

Key Benefits of the Silentnight UltraGel 3000 Pocket Soft Super King Mattress

  • A full 90cm each: Sharing gives you 90cm each, which means a partner who tosses and turns is simply further away, and distance helps more than any comfort layer can.
  • 15cm more each than a king: Compared with the UK king's 75cm per person, the UK super king gives each sleeper 15cm more, which you notice most when someone rolls over or starfishes.
  • Room for night-time visitors: When a small child climbs in after a bad dream, the soft surface stays comfortable and the extra width means both adults still keep a proper share.
  • Same length as the UK king: The UK super king is 30cm wider than the UK king but the same length, so it only takes extra space across the room and none at the foot of the bed.
  • Fills a large room properly: In a period property or a big master bedroom, a UK king can look a little lost, while the UK super king suits the scale of the room.

Who should buy the Silentnight UltraGel 3000 Pocket Soft Super King Mattress?

This size suits you if...

You share with a restless partner and want real distance between you, or children and pets regularly end up in the bed. It also suits you if you're both lighter or side sleepers who like the soft feel and your bedroom comfortably clears our suggested minimum of 3m x 2.9m.

Consider another size if...

Your bedroom is tight for 3m x 2.9m, or you rarely share the bed. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.

FAQ's

Frequently Asked Questions About the UK Super King

Is the UltraGel 3000 Pocket Soft super king big enough for two adults and a child?

For occasional visits, yes. The UK super king gives 90cm each to two adults, so a small child tucked in the middle for part of the night still leaves both of you room to turn. If it happens every night, the soft surface will feel comfortable, but everyone will have less space than the headline figure suggests.

Silentnight UltraGel 3000 super king or king: is the extra width noticeable?

Yes, if you share. The UK super king is 30cm wider than the UK king and gives 15cm more per person, 90cm each against 75cm. Both sizes have the same length. If your partner is restless or pets join you, you'll feel the difference. If you sleep calmly, the UK king may be enough and needs a smaller room.

Does a soft super king mattress help with a restless partner?

The width helps more than the softness. At 90cm each, a partner who fidgets is physically further from you. The soft feel suits lighter and side sleepers. If you and your partner have very different weights, the heavier person may sink more on a soft mattress, and the extra width will not change that.

Will a UK super king fit in a loft conversion bedroom?

Only if the room is large enough. We suggest at least 3m x 2.9m for a UK super king, and around 3.5m x 3.2m will feel comfortable. In a loft, the sloping ceiling usually decides which wall the headboard goes against, so measure the floor area where you have full standing height, not the total floor area.

What should I check before ordering this mattress in a UK super king?

Measure how the bedroom door swings and check every landing turn on the route in, because 180 x 200cm needs more space to manoeuvre than you'd expect. Check Silentnight's handling guidance too. Include new bedding in your budget: you'll need super king sheets and a 260 x 220cm duvet if your current bedding is smaller.