Vispring Heybrook Mattress
Mattress
Vispring Heybrook Mattress
Size
Firmness
Construction
Depth (cm)
23
Layers
3
Layer Details
- Natural fillings. Over 2,800g of natural fillings layered by hand, including South American horsetail, real Shetland wool, Mulberry silk and mohair. These materials breathe well and regulate temperature, which means less of the clammy warmth you can get with synthetic fillings.
- Spring core. High-tensile vanadium steel springs, each one hand-nested and placed in a breathable cotton calico pocket. Individually pocketed springs respond to each sleeper separately, so you feel less movement from a partner turning over.
- Spring insulator pad. An integrated insulator pad sits with the spring unit to keep support consistent. It means the mattress performs properly on either a slatted bedstead or a sprung base.
Layer details from featherandblack.com product page, September 2026.
- 7.5cm more each than a UK double: Moving up from the UK double gives each of you 7.5cm more width, which means fewer nights of elbows and knees meeting in the middle.
- Length for a tall partner: At 200cm, the UK king is 10cm longer than the UK double, so someone over six foot is less likely to find their feet at the very edge.
- Less disturbance on split schedules: Pocketed springs respond to each sleeper separately, and the extra width puts a little more distance between you, so an early alarm is less likely to wake the other person.
- The same firm feel on both sides: Both of you get the Heybrook's firm, supportive feel right across the 150cm width, although lightweight side sleepers may find it slightly hard at the shoulder.
- Smaller room demands than a super king: We suggest at least 2.7m x 2.9m for the UK king against 3m x 2.9m for the UK super king, which helps in a new build master bedroom with fitted wardrobes.
This size suits you if...
You share the bed every night and keep ending up in each other's space on a UK double, one of you is tall enough that 190cm feels short, or you go to bed and wake at different times and want a little more distance between you.
Consider another size if...
Your room is under our suggested 2.7m x 2.9m, or 75cm each would still feel cramped. We'd recommend the UK double for a smaller room, or the UK super king for 90cm each.
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Is the Vispring Heybrook UK king long enough for someone over 6ft?
The UK king is 200cm long, or 6ft 6in, which is 10cm longer than the UK double. For a partner over six foot, that extra length is often the real reason to size up. The UK super king is the same 200cm length, so moving up again gives you more width but no extra length.
How much space does each person get on a Vispring Heybrook king?
Two people sharing the UK king get 75cm each. That's 7.5cm more each than the UK double, which gives 67.5cm each, and 15cm less each than the UK super king at 90cm each. For most couples the UK king is a comfortable middle ground.
Will I feel my partner move on the Heybrook in a UK king?
The Heybrook's springs sit in individual calico pockets, which means they respond to each sleeper separately rather than passing movement across the mattress. On the UK king you also have 75cm each, so there's a little more space between you than on the UK double. That helps if one of you rises hours before the other.
Heybrook UK king or UK super king: which should couples choose?
Choose the UK king if your room is at least 2.7m x 2.9m and 75cm each feels enough. The UK super king gives 90cm each, useful if a dog regularly shares the bed, but we suggest at least 3m x 2.9m for it. Both are 200cm long.
Will a Vispring Heybrook UK king fit a new build master bedroom?
We suggest at least 2.7m x 2.9m for the UK king, with 3.2m x 3.2m comfortable. New build master bedrooms often feel smaller once wardrobes and bedside tables are in, so measure the clear floor space, not the room plan. If you fall short, the UK double needs at least 2.6m x 2.8m.