Nectar Classic Memory Foam King Size Mattress
The Nectar Classic is an all-foam mattress with a seven-zone base, which means memory foam cushions your hips and shoulders while firmer zones keep your spine supported.
- Eases pressure at hips & shoulders
- Medium firm, with a seven-zone base
- 365-night trial & Forever Warranty
£549
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Nectar Classic Memory Foam Mattress
More available sizes
Mattress details
Mattress
Nectar Classic Memory Foam Mattress
Size
Firmness
Medium Firm
Construction
Foam
Memory Foam
Depth (cm)
25
Layers
5
Layer Details
Soft cooling cover
A menopause-friendly cover designed to wick heat away and encourage airflow, which means less heat building up at the surface.
Dynamic support layer
A breathable foam layer that helps regulate temperature and adds some responsive bounce, so changing position feels easier.
Pressure-relieving memory foam
Contouring memory foam that adapts to your shape, which means hips, shoulders and joints are cushioned as you settle in.
Seven-zone supportive base
A castellated support foam with seven zones, which means firmer support where you're heaviest and help keeping your spine aligned.
Positioning base
A non-slip layer that grips the bed frame, so the mattress stays in place.
Layer details from nectarsleep.co.uk product page, October 2026.
Key benefits
- 75cm each, every night: Two people sharing get 75cm of width apiece, which means you can change position without negotiating for space.
- 7.5cm more each than a UK double: The UK king gives each sleeper 7.5cm more than a UK double, a difference you feel most when one of you is a restless sleeper.
- Memory foam plus width equals less disturbance: Memory foam absorbs movement rather than transmitting it, so on a bed this wide a partner leaving hours before you is easier to sleep through.
- 200cm of length for taller sleepers: The UK king is 10cm longer than a UK double, welcome breathing room if either of you is approaching six foot.
- Room for the dog too: If a pet sleeping on the bed is part of your routine, the extra width means it takes its share without pushing anyone to the edge.
This size suits you if...
You share the bed every night and a UK double has started to feel cramped, one of you gets up much earlier than the other and you want the movement to go unnoticed, or a sleeper in the house is tall enough that 190cm beds leave feet near the edge. It also suits couples who share with a dog and want the width to absorb that.
Consider another size if...
Your bedroom falls below the 2.7m x 2.9m we suggest for a UK king, or you sleep alone. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m and still offers the same memory foam feel.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Is the Nectar Classic in a UK king good for couples?
Yes, and it's arguably the size where this mattress makes most sense for two. You get 75cm of width each, and memory foam's slow-moving surface soaks up a partner's tossing rather than bouncing it across the bed. If you're a light sleeper sharing with a restless one, that combination is the point of buying it.
Will a Nectar Classic UK king fit in my bedroom?
We suggest a room of at least 2.7m x 2.9m for a UK king, which leaves enough space to walk around the bed and open drawers. New build master bedrooms can shrink quickly once fitted wardrobes go in, so measure the usable floor rather than the room on the plan before committing.
Is the UK king Nectar Classic long enough for someone over 6ft?
At 200cm long, the UK king gives 10cm more length than a UK double, which is often the difference between feet hanging over the end and a comfortable night. If height is your main reason for upgrading, this size delivers it without demanding the floor space of a UK super king.
Should we choose the Nectar Classic in a king or super king?
The UK super king is 30cm wider, giving 90cm each rather than the UK king's 75cm, and both are the same 200cm length. The trade-off is room size: we suggest at least 3m x 2.9m for a UK super king. If your room clears that comfortably and you both spread out, size up.
Does memory foam reduce partner disturbance on a king size bed?
It helps. Memory foam responds slowly and locally, so when one of you shifts or climbs out early, the movement largely stays on their side rather than travelling across the mattress. Combined with the UK king's 150cm width, most sharers find disturbance noticeably lower than on a smaller sprung bed.