Rest Assured Venice Ortho 1400 Pocket King Size Mattress
The Rest Assured Venice Ortho 1400 Pocket Mattress is a firm pocket spring mattress with 1400 springs in individual fabric pockets.
- Firm feel for back & front sleepers
- Eco fibres help you sleep cooler
- Hypoallergenic & vegan friendly
£439
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Rest Assured Venice Ortho 1400 Pocket Mattress
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Mattress details
Mattress
Rest Assured Venice Ortho 1400 Pocket Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Depth (cm)
25
Layers
4
Layer Details
Cover
A breathable Belgian damask fabric cover. It lets air move through the surface, which helps keep the sleeping surface fresher.
Comfort Fillings
Resilient polyester comfort fillings with layers of soft white fibres. These sit between you and the springs, which means a softer initial feel that helps alleviate pressure points.
Eco Comfort Fibres™
Breathable, sustainable fibres that are 100% recyclable. They've been scientifically proven to keep you cooler while you sleep, a helpful layer if you run warm at night.
Support System
1400 pocket springs, each mounted in its own separate fabric pocket. They work completely independently, which means support that follows your shape and less disturbance when a partner moves.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- More room each than a UK double: You get 75cm each, which is 7.5cm more per person than the UK double, so elbows and knees stop meeting in the middle.
- Fewer wake-ups from an early riser: The 1400 springs sit in separate pockets, which means a partner leaving the bed before dawn causes less movement on your side of this wider surface.
- Length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, which helps a partner over six foot lie flat without feet hanging off the end.
- Firm support across a larger surface: The firm, orthopaedic-style feel holds its shape on both sides, which suits couples who each sleep on their back or front.
- Space to change position: The extra 15cm of width over the UK double gives you room to shift or add a support pillow without crowding your partner, useful during pregnancy.
This size suits you if...
You share the bed every night and have outgrown a UK double, one of you gets up hours before the other and you're tired of being disturbed, or one partner is over six foot and needs the extra length as much as the width.
Consider another size if...
Your bedroom is smaller than 2.7m x 2.9m once wardrobes are in. The UK double would suit you better, and we suggest at least 2.6m x 2.8m for it.
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FAQ's
Will a UK king Venice Ortho 1400 stop my partner waking me up?
It should help. The pocket springs move independently, so movement stays closer to where it starts, and in a UK king each of you has 75cm rather than the 67.5cm of a UK double. That extra distance plus the spring design means an early alarm or restless partner is less likely to reach you.
Is the Venice Ortho 1400 UK king long enough for someone over 6ft?
The UK king is 200cm long, which is 10cm longer than the UK double, the UK small double and the UK single. For a partner over six foot, that length is often the real reason to upgrade. The UK super king is the same 200cm length, so sizing up beyond the UK king adds width only.
Should I get the Venice Ortho 1400 in a UK king or a UK super king?
The UK super king gives 90cm each, 15cm more per person than the UK king, but we suggest at least 3m x 2.9m for it. For the UK king we suggest at least 2.7m x 2.9m. If your room is tight, the UK king gives most couples ample space without crowding the floor.
How much more space does the Venice Ortho 1400 king give than a double?
The UK king is 15cm wider and 10cm longer than the UK double. Shared between two, that works out as 75cm each against 67.5cm, so 7.5cm more per person. It sounds modest on paper, but it's enough to stop you drifting into each other's space overnight.
Is a firm UK king mattress good for pregnancy?
The firm feel suits back sleepers, but many people sleep on their side in later pregnancy, and lightweight side sleepers may find this mattress a little too solid. Where the UK king helps is width: there's room for a pregnancy pillow and for shifting position without pushing your partner towards the edge.