Vispring Hartley Mattress
Mattress
Vispring Hartley Mattress
Size
Firmness
Construction
Depth (cm)
23
Layers
4
Layer Details
- Cover. An elegant damask cover with tailored handles and tape edging. The handles are a practical touch, as a mattress of this build is heavy to rotate.
- Natural fillings. Generous layers of natural fillings including British fleece wool, cotton, bamboo, cashmere, silk, alpaca and layered Shetland wool. Wool and silk regulate temperature naturally, which means fewer overheated nights than you would get from foam.
- Spring system. A double layer of Vispring pocket springs, individually nested in breathable cotton calico, 2,240 springs in all. Calico pockets allow air through and let each spring move independently, so you feel less of your partner's movement.
- Insulator pad. An integrated insulator pad ensures the Hartley performs consistently on both slatted bedsteads and sprung bases. In practice, that means less worry about whether your existing frame will suit it.
Layer details from featherandblack.com product page, September 2026.
- Real distance from a restless partner: You each get 90cm of width, which means a partner who kicks or turns all night is simply further away, and that distance helps more than any comfort layer can.
- Room when the family piles in: If a small child wanders in at 3am or a large dog sleeps on the bed as a matter of routine, the extra width lets everyone keep a share without anyone clinging to the edge.
- A step up from the UK king: The UK super king is 30cm wider than the UK king at the same length, giving each sleeper 15cm more, which you notice most on nights when you share the bed with more than one other person.
- Independent springs across a wide surface: The Hartley's 2,240 calico-pocketed springs move individually, so over this much width a partner's movement on one side travels very little towards yours.
- Proportioned for a large bedroom: In a period property or a spacious master bedroom, a smaller bed can look lost, and the UK super king fills the space in proportion to the room.
This size suits you if...
You share the bed with a partner whose tossing and turning keeps waking you, or children and dogs regularly join you overnight, and your bedroom comfortably clears our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom is tighter than 3m x 2.9m, or you mostly sleep alone. We'd recommend the UK king instead, for which we suggest at least 2.7m x 2.9m.
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Is a Vispring Hartley UK super king big enough for two adults and a child?
For occasional visits, yes. Two adults get 90cm each, and there's enough width for a small child who wanders in at night to fit between you without anyone being pushed to the edge. The independent pocket springs also mean a wriggling child disturbs you slightly less than they would on a more connected spring unit.
How much wider is the Vispring Hartley super king than the king?
The UK super king is 30cm wider than the UK king, and the two are the same length. Shared between two people, that works out at 15cm more each: 90cm per person on the UK super king against 75cm on the UK king.
Will a Vispring Hartley UK super king fit in a room sized for a king?
Possibly not. We suggest at least 3m x 2.9m for the UK super king, compared with at least 2.7m x 2.9m for the UK king, and around 3.5m x 3.2m feels more comfortable. Check door swing and walking space around the bed before ordering, because a bed this heavy is awkward to move once it's in place.
Is the super king the largest Vispring Hartley size?
Yes. The Hartley comes in double, king and super king, and the UK super king at 180 x 200cm is the largest of the three. There's no single size, so if you want the widest possible sleeping surface in this model, the UK super king is the one to choose.
Does a UK super king Vispring Hartley suit a loft conversion bedroom?
It can, but the sloping ceiling usually decides which wall the bed goes against, and at 180cm wide you need full headroom along both sides. The tailored handles help with rotating the mattress, although Vispring doesn't publish a weight for it, so allow for a heavy lift on loft stairs.