Rest Assured Silk Pocket 1400 Super King Mattress
Rest Assured

Rest Assured Silk Pocket 1400 Super King Mattress

The Rest Assured Silk Pocket 1400 comes in five UK sizes, from Single up to Super King.

  • Firm feel for a supportive sleep
  • Natural silk, wool & cotton fillings
  • Chemical treatment-free

£588.27

Size: Super King. Available at Archers Sleepcentre

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Where can I buy the Rest Assured Silk Pocket 1400 Super King Mattress?

Below are the best prices for the Rest Assured Silk Pocket 1400 Mattress in a Super King. Available from (9) trusted retailers.

Rest Assured Silk Pocket 1400 Mattress

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Prices last checked:
11th November 2026

Mattress dimensions for the Rest Assured Silk Pocket 1400 Super King Mattress

Length: 200cm

Width: 180cm

(6ft x 6ft 6in)

Minimum room size: 3m x 2.9m

Mattress details

Mattress Details for the Rest Assured Silk Pocket 1400 Super King Mattress

Mattress

Rest Assured Silk Pocket 1400 Mattress

Size

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

Firmness

Firm

Construction

  • Pocket Spring

Depth (cm)

Layers

Layer Details

Key benefits

Key Benefits of the Rest Assured Silk Pocket 1400 Super King Mattress

  • Real distance from a restless partner: Two sleepers get 90cm each, which means a partner who turns over all night is physically further from you, whatever the mattress is made of.
  • More room than the UK king: Each of you gains 15cm of width over the UK king, which means a slightly wider buffer on the side you share.
  • Space for a small visitor: When a child pads in at 3am, they can settle in the middle while both adults keep a usable share of the bed.
  • Same length as the UK king: At 200cm long it matches the UK king, so taller sleepers get identical legroom and every extra centimetre goes into width.
  • In proportion in a large room: In a period house or a generous master bedroom, a UK super king fills the space properly where a smaller bed can look a little lost.

Who should buy the Rest Assured Silk Pocket 1400 Super King Mattress?

This size suits you if...

You share with a partner whose tossing and turning keeps waking you, or children and a large dog regularly end up in the bed, and your bedroom comfortably clears our suggested minimum of 3m x 2.9m.

Consider another size if...

Your room is smaller than 3m x 2.9m, or tight door swings leave little clearance around the bed. The UK king would suit you better, and we suggest at least 2.7m x 2.9m for it.

FAQ's

Frequently Asked Questions About the UK Super King

Is the Silk Pocket 1400 UK super king big enough for two adults and a child?

For occasional night visits, yes. The UK super king is 180cm wide, giving each adult 90cm before a child arrives, so a small one tucked in the middle leaves both of you a workable share. A UK king gives 75cm each to start with, which gets cramped much sooner.

Rest Assured Silk Pocket 1400 super king or king: which should I choose?

The UK super king is 30cm wider than the UK king and the same length, which gives each sleeper 15cm more. The trade-off is floor space: we suggest at least 3m x 2.9m for the UK super king, and at least 2.7m x 2.9m for the UK king.

Does a UK super king help if my partner is a restless sleeper?

Distance helps more than anything else, and 90cm each is the most a standard UK size offers. We can't confirm how well this model's springs limit movement across the bed, so if light sleeping is your main concern, check the retailer's full specification before buying.

Will a super king Silk Pocket 1400 fit in a loft conversion bedroom?

Possibly, but the sloping ceiling usually decides which wall the headboard goes on, because you need standing height to get in and out. Measure the flat floor area with full headroom, not the whole room, and check it still meets our suggested minimum of 3m x 2.9m.

Is a Rest Assured Silk Pocket 1400 super king big enough to share with a large dog?

It gives you the most room of any standard UK size, at 180 x 200cm. A large dog sleeping on the bed most nights will still take some of each person's 90cm, so a UK super king is the sensible choice if the dog is a fixture rather than an occasional guest.