Sweet Dreams Lumina Gel Pocket 1000 Pillowtop King Size Mattress
The Sweet Dreams Lumina Gel Pocket 1000 Pillowtop Mattress combines a gel-infused cooling layer with a pillowtop, which means a softer-feeling top and a surface designed to shed excess body heat.
- Cooling gel layer for warm sleepers
- Pillowtop adds a softer feel
- Foam border for edge-to-edge support
£492.07
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.
Sweet Dreams Lumina Gel Pocket 1000 Pillowtop Mattress
More available sizes
Mattress details
Mattress
Sweet Dreams Lumina Gel Pocket 1000 Pillowtop Mattress
Size
Firmness
Medium Firm
Construction
Gel
Pocket Spring
Depth (cm)
32
Layers
4
Layer Details
Pillowtop
Additional layers of upholstered filling that create a softer, more comfortable surface. It takes the edge off the medium-to-firm feel without changing the rating.
Gel layer
A cooling gel-infused layer designed to dissipate excess body heat. That should help you stay more comfortable if you sleep warm.
Pocket springs
Rows of small-diameter pocket springs, each wrapped in its own cloth sleeve. Each spring works independently, so the support follows your body more closely.
Foam encapsulated border
A high-density foam border around the edge of the spring system. It gives edge-to-edge support, so the sides feel steadier when you sit or sleep near them.
Layer details from archerssleepcentre.co.uk product page, October 2026.
Key benefits
- More room each than a double: You each get 7.5cm more width than on a UK double, which means fewer elbows in the back and more space to turn over without nudging your partner.
- Less disturbance on different schedules: Each pocket spring sits in its own sleeve, which means an early riser climbing out at dawn should send less movement across to the side still asleep.
- Extra length for a tall partner: At 200cm long, a UK king is 10cm longer than a UK double, so a tall sleeper can stretch out without feet resting on the footboard.
- A steadier edge for getting up: The foam border round the springs keeps the sides firmer, which helps if you're recovering from an injury and need to sit on the edge before standing.
- Cooler over a bigger shared surface: Two people generate more heat than one, and the gel layer under the pillowtop is designed to draw some of that warmth away through the night.
This size suits you if...
You share the bed every night and have started to feel cramped on a double, one of you is tall enough that length matters as much as width, or you get up at different times and want the other person to stay asleep.
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 we suggest needs at least 2.6m x 2.8m.
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 Sweet Dreams Lumina Pillowtop UK king big enough for two people?
For most couples, yes. A UK king gives 75cm each, which is 7.5cm more per person than a UK double. That extra width, combined with independently wrapped pocket springs, should mean less shared movement. If you regularly have a child or a dog joining you, the extra space can disappear quickly.
What size bedroom do I need for a UK king Lumina Gel Pocket 1000 Pillowtop?
We suggest allowing at least 2.7m x 2.9m, which leaves room to walk round the bed and open a wardrobe. New build master bedrooms can feel tight once fitted furniture goes in, so measure with the furniture in place rather than the empty room.
Is the UK king Lumina Pillowtop long enough for a tall sleeper?
It's 200cm long (6ft 6in), which is 10cm longer than a UK double. If length is the main reason you're upgrading, a UK king gives you that extra length without the room demands of a UK super king, which is the same length but wider.
Should I get the Lumina Gel Pocket 1000 Pillowtop in UK king or UK super king?
A UK super king gives 90cm each, so a UK king gives you 15cm less per person. If you sleep restlessly or want real separation, a UK super king helps, but we suggest at least 3m x 2.9m for it. In a smaller room, the UK king is the more practical choice.
What bedding fits the Sweet Dreams Lumina Pillowtop king size mattress?
Standard UK king fitted sheets suit the 150 x 200cm surface, and a 230 x 220cm king duvet gives good coverage for two. The mattress is 32cm deep with a pillowtop, so check the pocket depth on fitted sheets before you buy them.