Flaxby Platinum Solstice Mattress
Mattress
Flaxby Platinum Solstice Mattress
Size
Firmness
Construction
Depth (cm)
33
Layers
3
Layer Details
- Top layers. Naturally soft layers of wool, cotton, mohair, silk, cashmere and alpaca sit at the surface. These fibres give a plush initial feel while wicking moisture away as you sleep.
- Temperature-regulating layers. Beneath the comfort fibres are naturally temperature-regulating layers of hemp and flax. They help keep the mattress closer to a steady temperature through the night.
- Springs. The support core holds 19,170 pocket springs with adaptive, pressure-relieving micro springs, hand sewn into calico pockets. The micro springs respond to smaller contours, which means pressure points like hips and shoulders get more precise support.
Layer details from featherandblack.com product page, September 2026.
- Real space for one: At 30cm wider than the UK single, a solo sleeper gets genuine stretching room on a firm surface that supports rather than swallows you.
- Fits rooms a double cannot: Being 15cm narrower than the UK double, it slots into box rooms and loft conversions where a wider frame would block walking space.
- 19,170 springs across a compact footprint: The pocket springs and calico-sewn micro springs respond to smaller contours, which means precise support at the hips and shoulders even on this narrower width.
- Natural temperature control in a snug room: Hemp and flax layers help steady the mattress temperature, useful in the smaller, sometimes stuffier bedrooms this size tends to end up in.
- Standard 4ft bedding: The small double is a standard UK size, so fitted sheets and frames are easy to find, though the 33cm depth means checking sheet pockets first.
This size suits you if...
You sleep alone and have outgrown a single but your room can't spare the width of a full double, or you're furnishing a guest room where couples stay occasionally rather than nightly. It also suits a downsizer whose new bedroom simply won't take the bed from the old house, provided you like a firm feel and want natural fibres throughout.
Consider another size if...
You share the bed every night, because 120cm across two adults leaves little space to turn on a firm surface. We'd recommend the UK double instead, which is 15cm wider; allow at least 2.6m x 2.8m of room for it.
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Is the Flaxby Platinum Solstice small double big enough for a couple?
For occasional nights, yes: two adults can share 120cm of width for a weekend stay, and the firm surface means less roll-together than a softer mattress. As an every-night bed for two it's tight. Couples sharing regularly should look at the UK double, which is 15cm wider at the same length.
What room size do I need for the Flaxby Platinum Solstice in a small double?
We suggest allowing at least 2.4m x 2.8m. That leaves room to open the door, walk around the bed and add a bedside table. The mattress itself is 120 x 190cm, so in a box room or loft conversion measure the usable floor, including any sloping ceilings, before ordering.
How much bigger is the small double than a single for this mattress?
The UK small double is 30cm wider than the UK single, and the two are the same length at 190cm. For a teenager or adult who has outgrown a single, that extra width is the difference between sleeping carefully and actually spreading out, without the jump in floor space a double demands.
Will small double fitted sheets fit this mattress?
Standard 4ft small double sheets are the right size in width and length, but check the depth. The Platinum Solstice is 33cm deep, which is more than many fitted sheets allow for, so look for deep or extra-deep small double sheets. A standard double duvet works well on top.
Should I size up to the double instead?
If the room takes it and you share the bed most nights, probably. The UK double is 15cm wider and the same length, and we suggest at least 2.6m x 2.8m of room for it. If you sleep alone, the small double gives you plenty of space and keeps more of your floor free.