Sweet Dreams Hilton Memory Pocket 4000 King Size Mattress
The Sweet Dreams Hilton Memory Pocket 4000 is available in UK Double, King and Super King.
- Medium-firm feel for most sleepers
- Memory foam moulds to your shape
- Air vents for airflow
£519.17
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Sweet Dreams Hilton Memory Pocket 4000 Mattress
More available sizes
Mattress details
Mattress
Sweet Dreams Hilton Memory Pocket 4000 Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Memory Foam
Depth (cm)
Layers
4
Layer Details
Stretch knit cover
A stretch knit fabric with a hand-tufted finish that keeps the fillings in place. It means the surface stays neatly held together rather than shifting around over time.
Memory foam layer
Temperature-sensitive memory foam that reacts to body heat and moulds to your contours. This gives you pressure relief at the shoulders and hips, with a slower, hugging feel when you lie down.
Small diameter pocket spring layer
The core is a layer of small diameter pocket springs. It forms the supportive base of the mattress and sits underneath the comfort layers.
Mini comfort tablet pocket springs
Two layers of mini comfort tablet pocket springs sit on top of the core, each spring housed in its own cloth sleeve. Because each spring works on its own, the mattress can respond to your body in a more targeted way.
Layer details from archerssleepcentre.co.uk product page, October 2026.
Key benefits
- More room each: You each get 75cm of width, 7.5cm more per person than a UK double, which means fewer elbows and a little more room to turn over.
- Extra length for taller sleepers: At 200cm long, the UK king adds 10cm over a UK double, so a partner over 6ft is less likely to find their feet hanging off the end.
- Space between you at night: If one of you gets up hours before the other, that extra width puts a bit more distance between you, so the early riser is easier to sleep through.
- Room for pillows and repositioning: During pregnancy or recovery, the UK king leaves space for supporting pillows and for shifting position without edging your partner towards the side.
- A middle step before a super king: You gain real space over a double, and we suggest a room of at least 2.7m x 2.9m, smaller than the UK super king needs.
This size suits you if...
You share the bed every night and a UK double now feels tight, or one of you is tall enough that extra length would make more difference than extra width. It also suits couples on different sleep schedules who want a little more distance between them.
Consider another size if...
Your bedroom is smaller than our suggested 2.7m x 2.9m once wardrobes and bedside tables are in. We'd recommend the UK double instead, which we suggest for rooms of at least 2.6m x 2.8m.
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FAQ's
Is the Hilton Memory Pocket 4000 UK king long enough if you're over six foot?
The UK king is 200cm long (6ft 6in), which is 10cm longer than the UK double. For anyone approaching or over 6ft, that extra length often matters more than the extra width, because you can stretch out without your feet reaching the edge.
How much space do two people get on a Hilton Memory Pocket 4000 UK king?
You get 75cm each when sharing. The UK double gives 67.5cm each, so the UK king adds 7.5cm per person. It sounds a small gain on paper, but you notice it most when one of you rolls over or gets up early.
Should I get the Hilton Memory Pocket 4000 in a UK king or UK super king?
The UK super king is 30cm wider at the same length, giving 90cm each, so the UK king gives 15cm less per person. The UK super king needs more floor space, though: we suggest at least 3m x 2.9m. If your room is tighter than that, the UK king is the sensible choice.
Will a UK king Hilton Memory Pocket 4000 fit in a new build master bedroom?
New build master bedrooms often feel smaller once fitted wardrobes are in. We suggest at least 2.7m x 2.9m for a UK king, and 3.2m x 3.2m is comfortable. Measure the floor space left after furniture, and allow room to walk round both sides.
Is a UK king big enough to share during pregnancy?
A UK king gives you 75cm each, which leaves some space for a pregnancy pillow without pushing your partner to the edge. If you both like plenty of room, or you use several pillows, the UK super king gives 90cm each, as long as your room allows at least 3m x 2.9m.