Sweet Dreams Optima Gel Pocket 3000 King Size Mattress
The Sweet Dreams Optima Gel Pocket 3000 Mattress combines a gel-infused top layer with a dual-layer pocket spring core, which means a medium-firm feel that helps draw excess body heat away as you sleep.
- Gel layer keeps you cooler
- Minimises partner disturbance
- Supportive edge-to-edge feel
£518.66
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Sweet Dreams Optima Gel Pocket 3000 Mattress
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Mattress details
Mattress
Sweet Dreams Optima Gel Pocket 3000 Mattress
Size
Firmness
Medium Firm
Construction
Gel
Pocket Spring
Depth (cm)
28
Layers
2
Layer Details
Gel-infused layer
A temperature regulating gel-infused layer tops the mattress and disperses excess body heat, which means you should stay more comfortable if you tend to sleep warm.
Dual-layer pocket spring core
The core has 1000 pocket springs topped with 2000 mini table pocket springs, each in its own cloth sleeve. Because they move independently, you get supportive comfort with less disturbance from a partner.
Layer details from archerssleepcentre.co.uk product page, October 2026.
Key benefits
- More room each than a double: You get 75cm each for two people, which is 7.5cm more per person than the UK double, enough to stop elbows meeting every time someone turns over.
- Length for taller sleepers: At 200cm the UK king is 10cm longer than the UK double, which means a partner over six foot can stretch out without ending up diagonal.
- Quieter early starts: Each pocket spring sits in its own sleeve, so if one of you gets up hours before the other, the shift in weight should travel less across a wider surface.
- Usable edges on a wider bed: The foam encapsulated border supports the sides, which helps when you're sitting on the edge to get up after an injury or with a bump during pregnancy.
- Cooler with two bodies: Two people generate more heat, and the gel-infused top layer is designed to disperse it, which suits couples where one or both of you run warm.
This size suits you if...
You share the bed every night and keep meeting in the middle on a UK double, one of you is over six foot and has run out of length, or your schedules differ enough that you want space and less movement between you.
Consider another size if...
Your bedroom is smaller than our suggested 2.7m x 2.9m once wardrobes are in. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
Is the Sweet Dreams Optima Gel Pocket 3000 king size big enough for two adults?
For most couples, yes. The UK king gives 75cm each for two people sharing, which is 7.5cm more per person than the UK double. If one of you sprawls or a dog regularly joins you, the UK super king gives 90cm each, although it needs a bigger room.
Will the UK king Optima Gel Pocket 3000 fit in a new build master bedroom?
We suggest allowing at least 2.7m x 2.9m for a UK king, with 3.2m x 3.2m feeling comfortable. New build master bedrooms often shrink once fitted wardrobes go in, so measure the floor you'll actually have, including space to walk round both sides.
Is a king size Sweet Dreams Optima long enough for someone over 6ft?
The UK king is 200cm long, which is 10cm longer than the UK double and the UK small double. That extra length is often the real reason taller sleepers upgrade. It's the same length as the UK super king, so going larger only adds width.
Should I get the Optima Gel Pocket 3000 in king or super king?
The UK super king is 30cm wider and gives 15cm more each, but we suggest at least 3m x 2.9m for it. If your room only just clears 2.7m x 2.9m, the UK king gives you the length and a real width gain over a double without crowding the room.
What bedding fits the Sweet Dreams Optima Gel Pocket 3000 king size?
Standard UK king fitted sheets suit its 150 x 200cm footprint. Check the pocket depth suits a 28cm mattress before you buy. A 230 x 220cm king duvet fits, and couples who tug the covers often find it easier to share.