Silentnight Aloe Vera Castleton 800 Pocket Eco Super King Mattress
The Silentnight Aloe Vera Castleton 800 Pocket Eco Mattress uses 800 individual Mirapocket springs with firmer support through the centre, which means your body stays supported while a partner's movements are less likely to wake you.
- Medium feel for most sleepers
- Minimises partner disturbance
- Aloe vera-infused soft-touch cover
£599
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Silentnight Aloe Vera Castleton 800 Pocket Eco Mattress
More available sizes
Mattress details
Mattress
Silentnight Aloe Vera Castleton 800 Pocket Eco Mattress
Size
Firmness
Medium
Construction
Eco-Friendly
Pocket Spring
Depth (cm)
Layers
Layer Details
Key benefits
- 90cm of width each: Each sleeper gets 90cm, the same width as a UK single, which means a restless partner's elbows and knees rarely reach your side of the bed.
- Distance and independent springs together: The 800 Mirapocket springs move independently, and on a bed this wide the extra gap between you means even less of a partner's turning reaches you.
- A share for everyone: If a young child or a large dog joins you most nights, the full 6ft of width lets everyone keep some space rather than one adult clinging to the edge.
- 15cm more each than a UK king: Compared with the UK king, you gain 15cm of personal width each at the same 200cm length, which helps couples who already feel cramped.
- In proportion with a large room: In a period property or a generous master bedroom, a UK super king fills the floor properly, where a smaller bed can look a little lost.
- Help with shared heat: Comfort Breathe fibres help regulate temperature, which matters more when two adults, and sometimes a child, are giving off warmth in one bed.
This size suits you if...
Your partner moves a lot at night or children and pets often end up in with you, and your bedroom comfortably clears our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom falls short of 3m x 2.9m, or the stairs and landing are tight. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
What size room do I need for a UK super king Silentnight Castleton 800?
We suggest at least 3m x 2.9m, and around 3.5m x 3.2m feels more comfortable once you add bedside tables and space to walk round. In a loft conversion, the sloping ceiling usually decides which wall the bed goes against, so check headroom where you'll sit up as well as the floor area.
Is a UK super king better than a UK king for a restless partner?
The UK super king is 30cm wider than the UK king at the same length, giving you 15cm more each. The independent Mirapocket springs already limit motion, but physical distance helps where springs can't. If a partner's turning wakes you most nights, the wider bed is the more dependable fix.
Will a super king Castleton 800 fit up my stairs?
At 180 x 200cm this is a large item to manoeuvre, so check the door swing into the bedroom and any tight turns on the landing before you order. Silentnight doesn't publish a depth for this mattress, so ask the retailer if clearance is close, then compare the retailers listed on this page.
Can two adults and a child sleep on a UK super king?
Two adults get 90cm each, so a small child climbing in after a nightmare can usually fit between you without anyone ending up on the edge. It suits occasional visits well. As children grow, a permanent three-person arrangement gets tighter, even at this width.
What bedding fits a UK super king mattress?
You'll need super king fitted sheets and a 260 x 220cm duvet. King sets won't fit, so plan for new bedding alongside the mattress. Silentnight doesn't publish a depth for this mattress, so measure it once it arrives before buying deep-pocket fitted sheets.