Sleepeezee Centurial 03 7000 Pocket Mattress
Mattress
Sleepeezee Centurial 03 7000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
36
Layers
5
Layer Details
- Cover. A soft woven viscose cover creates a silky smooth finish. It's the first thing you'll feel, and it sets a gentle tone for the layers beneath.
- Pillow top. An additional comfort layer filled with natural alpaca wool, which means a more luxurious feel underneath you. The alpaca also helps with temperature regulation, useful if you tend to overheat at night.
- Latex. Latex is incredibly durable and returns to its shape quickly, offering superior pressure relief. In practice, that means less of a sinking feeling and easier movement when you change position.
- Wool. A natural insulator with strong temperature regulating properties. It works alongside the alpaca layer to keep the sleep surface closer to a comfortable temperature year round.
- Pocket Springs and Mini Pocket Springs. 4500 traditional pocket springs are combined with 2500 mini pocket springs, each individually cased. This provides personalised support along your body and reduces motion transfer, so a restless partner is less noticeable.
Layer details from mattressonline.co.uk product page, September 2026.
- Distance from a restless partner: You each get 90cm, and the individually cased springs beneath you mean a partner's turning is both further away and less likely to travel across the surface.
- Space when the household joins in: Children arriving in the night or a large dog that sleeps on the bed as routine can share without either adult being pushed into a narrow strip.
- A clear step up from the UK king: The UK super king is 30cm wider than the UK king at the same length, which works out as 15cm more for each of you.
- In proportion with a big bedroom: In a period property or a generous master bedroom, a UK king can look slightly lost, whereas this mattress fills the room with some presence.
- Bedding to plan for: The mattress is 35.5cm deep, so choose deep-fitting super king sheets and a 260 x 220cm duvet to cover two people properly.
This size suits you if...
You share with a partner whose tossing and turning wakes you, or children and pets regularly end up in the bed, and your bedroom comfortably clears our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom is smaller than our suggested 3m x 2.9m, or two of you rarely share the bed. We'd recommend the UK king instead, for which we suggest at least 2.7m x 2.9m.
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Is the Sleepeezee Centurial 03 7000 UK super king big enough for a family to share?
For two adults and a young child who joins in the night, generally yes. Two sleepers get 90cm each, so there is space in the middle for a small visitor without either adult losing much ground. For regular sharing with older children, the width becomes a little tighter, although you're already at the largest standard UK size.
Centurial 03 7000 super king vs king: how much extra room do you get?
The UK super king is 30cm wider than the UK king, and the two are the same length. Shared between two, that gives each of you 15cm more, with 90cm each on the UK super king against 75cm each on the UK king. The trade-off is floor space: we suggest at least 3m x 2.9m for the UK super king.
Is a UK super king worth it if my partner is a restless sleeper?
If broken sleep is the main problem, the extra width helps as much as the mattress itself. The pocket springs limit how far movement travels, and 90cm each puts real distance between you. Comfort layers can only dampen a partner's movement, whereas space keeps it further from you.
Will a Centurial 03 7000 super king fit in a loft conversion bedroom?
It depends on the wall with full ceiling height. The slope usually decides where the bed goes, and a UK super king needs a long stretch of it. At 35.5cm deep, the mattress also sits fairly high, which brings your head closer to a sloping ceiling. Allow at least 3m x 2.9m, with around 3.5m x 3.2m feeling comfortable.
Does the UK super king Centurial 03 7000 suit sharing with a large dog?
It's the most practical size for it. A large dog tends to take up the middle or the foot of the bed, and 90cm each gives both adults some room to spare around it. If the dog sleeps on the bed every night, a UK king will feel noticeably more crowded.