Feather & Black Belvoir Mattress
Mattress
Feather & Black Belvoir Mattress
Size
Firmness
Construction
Foam
Pocket Spring
Memory Foam
Depth (cm)
28
Layers
3
Layer Details
- Knitted pillowtop. A soft knitted pillowtop with a sumptuous pillow top finish, which adds extra depth. In practice this gives a cushioned first impression before you reach the firmer support below.
- Memory foam. A layer of soothing memory foam that relieves pressure and works with the pocket springs beneath. It adapts to your movements during the night, so you get embracing support rather than a rigid feel.
- Pocket springs. 1,015 individually wrapped pocket springs in the king size. Each spring moves independently, which means support that follows your shape and less disturbance from a partner shifting about.
Layer details from featherandblack.com product page, September 2026.
- Leaves the rest of the room usable: At 90cm wide, the single Belvoir keeps floor space free for a desk, wardrobe and toy storage in a child's bedroom that has to do several jobs at once.
- Firm support for a growing sleeper: The firm tension gives back and front sleepers steady support, while the pillowtop softens the surface, so a teenager gets structure without lying on something board-hard.
- Two singles fit where one double won't: For siblings sharing or a guest room set up with two beds, a pair of UK singles can sit side by side with a walkway between them.
- A sensible spare room choice: In a study that doubles as guest space, a single leaves room for the desk on the nights nobody is staying.
- Check the depth on raised frames: The Belvoir is 28cm deep, which is generous for a single, so measure the guard rail height before putting it on a bunk, cabin or mid-sleeper frame.
This size suits you if...
You're buying for one person: a child moving up from a cot bed, a teenager who needs firmer support than a budget foam mattress gives, or a solo adult in a compact room. It also suits a spare room or study that hosts guests occasionally, where the 90cm width leaves space for everything else the room has to hold.
Consider another size if...
You're an adult who sleeps sprawled, or the room will ever need to sleep two. We'd recommend the UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m of floor space for it.
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What size is the Feather & Black Belvoir single mattress?
The UK single Belvoir measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard UK one-person size, so it fits any regular single bed frame and takes standard single sheets and a single duvet, both cheap and easy to find.
Will the Belvoir single fit a bunk or mid-sleeper bed?
The footprint matches standard bunk frames, but the Belvoir is 28cm deep, which is taller than many mattresses sold for raised beds. On a top bunk, safety rails need to sit well above the mattress surface, so measure the rail height on your frame before buying. On a cabin or mid-sleeper base, the depth matters less.
Is the Belvoir single good for a child or teenager?
It can be, with one caveat. The firm tension suits back and front sleepers and gives solid support, and the pillowtop softens the surface. A lightweight side sleeper, which describes many children, may find it a little unyielding at the shoulder. The antimicrobial SmartSilver cover is a genuine plus in a child's room.
How much room do I need for a single Belvoir?
We suggest allowing at least 2.1m x 2.8m of floor space, which covers the mattress plus room to walk round and open drawers. That makes the UK single a realistic fit in box rooms, loft conversions with a narrow usable strip under the slope, and student rooms where the frame is provided but the mattress isn't.
Where can I compare prices on the Belvoir in a UK single?
Use the live table on this page. The prices shown here are updated as retailers change them, so it's a more reliable picture than a figure printed in a review. Availability varies by size, so what's listed for the UK single may differ from the Belvoir's other sizes.