Vispring Hartley Double Mattress
The Vispring Hartley is a handmade natural mattress with a double layer of pocket springs, 2,240 in total, each nested in cotton calico, which means the springs respond to you individually rather than moving as one unit.
- Gentle give, firmer as you settle
- Silk & wool regulate temperature
- Works on slatted & sprung bases
£7,199
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.
Vispring Hartley Mattress
More available sizes
Mattress details
Mattress
Vispring Hartley Mattress
Size
Firmness
Firm
Construction
Foam
Pocket Spring
Wool
Natural
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.
Key benefits
- Leaves room around the bed: At 135cm wide, the UK double is more likely to leave space for a bedside table on each side, and we suggest a room of at least 2.6m x 2.8m.
- Less disturbance at close quarters: With 67.5cm each for two, you sleep nearer your partner than on a king, so springs moving independently in calico pockets help keep their turning from reaching you.
- Fits a standard double frame: At 4ft 6in x 6ft 3in it matches a standard UK double bedstead, and the insulator pad means it performs consistently on slatted or sprung bases.
- Cooler for a shared bed: Two people in a double build up warmth, and the wool, silk and cotton fillings breathe better than foam, which means a shared bed feels a little less stuffy.
- Simple to dress: Standard double sheets fit, and a 200 x 200cm double duvet covers two sleepers, so the bedding for a luxury mattress needs no special order.
This size suits you if...
You share the bed with a partner in a typical UK bedroom and still want a bedside table on each side, or you're furnishing a second bedroom or first flat where a wardrobe and drawers also need their share of the floor.
Consider another size if...
You already feel cramped sharing a bed, or one of you is tall. We'd recommend the UK king instead, which gives 7.5cm more each and is 10cm longer; allow at least 2.7m x 2.9m.
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 Vispring Hartley UK double wide enough for two people?
It gives 67.5cm each for two sharing, which suits most couples who sleep fairly still. Because each spring sits in its own calico pocket, a partner's movement travels less across the surface. If either of you sprawls or you often wake each other, the UK king gives 7.5cm more each.
What size bedroom do I need for a Vispring Hartley double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m giving comfortable space to walk round the bed. In a room near that minimum, measure where bedside tables and wardrobe doors will sit before you commit, as a mattress of this build is heavy to reposition once it's in.
How much bigger is the Vispring Hartley king than the double?
The UK king is 15cm wider and 10cm longer than the UK double, which works out as 7.5cm more each for two sharing. It needs more floor too: we suggest at least 2.7m x 2.9m for the UK king, against 2.6m x 2.8m for the UK double.
Is the Vispring Hartley double long enough for tall sleepers?
The UK double is 190cm long, or 6ft 3in. That suits most adults, although if you're tall and like your feet on the mattress you may find it a little short. The UK king adds 10cm of length, which is the more comfortable choice for taller couples.
Is a Vispring Hartley UK double a good choice for a guest room?
For visiting couples it fits where a king would crowd a spare room, and double sheets are easy to find. Yes, the listed Firm tension may feel too solid for lightweight side sleepers, but most guests staying a few nights will find the support comfortable. It's a big spend for occasional use, so weigh how often it'll be slept on.