Hypnos Stellar Superior Pillowtop King Size Mattress
The Hypnos Stellar Superior Pillowtop Mattress pairs a cotton and recycled-fibre pillow top with 6-Turn pocket springs, which means a medium-firm feel with gentle cushioning on top and solid support beneath.
- Medium-firm feel with soft cushioning
- Breathable damask cover
- Hand-tufted to hold its shape
£1,299
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Hypnos Stellar Superior Pillowtop Mattress
More available sizes
Mattress details
Mattress
Hypnos Stellar Superior Pillowtop Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Depth (cm)
30
Layers
2
Layer Details
Pillow top
Generous layers of cotton and Solotex recycled fibres sit on the surface. They give gentle full-body cushioning, so the medium-firm feel is softened where you lie.
6-Turn pocket spring unit
Hypnos' ReActivePro 6-Turn pocket springs form the support layer. They give the mattress its medium-firm base, so your body is held up while the pillow top cushions it.
Layer details from mattressnextday.co.uk product page, October 2026.
Key benefits
- More room each than a UK double: You each get 7.5cm more width than on a UK double, which means fewer elbows in the back and more space to settle without nudging your partner.
- Extra length for taller sleepers: The UK king is 10cm longer than a UK double, so a partner over six foot can stretch out without their feet pressing against the footboard.
- Firmer edges for using the full width: Triple Edge Protection and two rows of hand side-stitching help the edges keep their shape, which matters when two people sleep closer to the sides of the bed.
- Support under a softer surface: The 6-Turn pocket springs hold you both up while the cotton and Solotex pillow top softens the medium-firm feel where you lie.
- Space without a super king footprint: You gain real personal space over a UK double while needing a smaller room than a UK super king, which suits a main bedroom that shrinks once wardrobes go in.
This size suits you if...
You share the bed every night and have started to feel cramped on a UK double, or one of you is over six foot and needs the extra length. It also suits couples on different schedules, where one of you is up and out hours before the other and you'd like a little more distance from the disturbance.
Consider another size if...
Your bedroom is smaller than our suggested minimum of 2.7m x 2.9m for a UK king. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
Is the Hypnos Stellar Superior Pillowtop UK king big enough for two people?
Yes, for most couples. A UK king gives you 75cm each, which is 7.5cm more per person than a UK double. That extra space helps if one of you tends to drift towards the middle, although couples who both sprawl, or who share with a dog, may still find it a little snug.
Is a UK king mattress long enough if you're over 6ft?
For most tall sleepers, yes. The UK king measures 200cm long, or 6ft 6in, which is 10cm longer than a UK double. If length is your main reason for upgrading, the UK super king is the same length, so you only need to size up further if you also want more width.
What size bedroom do I need for a Hypnos Stellar Superior Pillowtop in UK king?
We suggest allowing at least 2.7m x 2.9m for a UK king, with 3.2m x 3.2m feeling comfortable. Measure once wardrobes and bedside tables are in place, because a new build main bedroom can feel much smaller furnished than it looks empty.
UK king or UK super king: which is better for not disturbing your partner?
A UK super king gives you 90cm each, so the UK king gives you 15cm less per person. If light sleeping or very different bedtimes are the main problem and your room allows at least 3m x 2.9m, the UK super king offers more separation. Otherwise, the UK king is a clear step up from a UK double.
What bedding fits a Hypnos Stellar Superior Pillowtop UK king?
Standard UK king sheets fit, and a 230 x 220cm king duvet covers the bed well for two. The mattress is 30cm deep with a pillow top, so check that the fitted sheet's pocket depth is generous enough to tuck right under.