Silentnight UltraGel 1000 Pocket Pillowtop Mattress
Mattress
Silentnight UltraGel 1000 Pocket Pillowtop Mattress
Size
Firmness
Construction
Depth (cm)
29
Layers
3
Layer Details
- Gel-infused comfort layer. A gel-infused foam layer that responds as you move, paired with breathable foam. In practice this means a responsive, slightly bouncy feel rather than the slow sink of traditional memory foam.
- Plush pillowtop. A soft pillowtop stitched to the surface for that sink-in feel. This is what gives the mattress its cushioned, medium soft character.
- Mirapocket springs. 1000 Mirapocket springs, each housed in its own fabric pocket so they move independently. Silentnight says the zoned design is scientifically proven to improve spinal alignment and posture, which you'll feel as firmer support where your body is heaviest.
Layer details from silentnight.co.uk product page, September 2026.
- A gentle feel for lighter bodies: The medium soft rating suits the lighter sleepers who typically use a UK single, letting children's and teens' shoulders and hips sink in slightly.
- Fits where other sizes cannot: At 90cm wide it leaves room for a desk, wardrobe and toy storage in a compact bedroom, or two beds in a shared one.
- Pocket springs, even at this size: The 1000 Mirapocket springs are housed in individual pockets, so the mattress supports one sleeper's body precisely rather than moving as a single slab.
- A softer option for guest rooms: The plush pillowtop gives occasional guests a cushioned surface, which is a comfort step up from the thin foam mattresses spare beds often get.
- Check depth on raised frames: At 29cm this is a substantial build, so measure the safety rail height before pairing it with a bunk, cabin or mid sleeper frame.
This size suits you if...
You're buying for a child's or teenager's room where the bed shares space with a desk and storage, you sleep alone and want a soft, cushioned hybrid in a compact room, or you're furnishing a spare room or study that doubles as guest space and want visiting family to sleep on something genuinely comfortable.
Consider another size if...
You're an adult who shares the bed, or you find a 90cm width restricts how much you can spread out. We'd recommend the UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m for it.
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Is the Silentnight UltraGel 1000 single suitable for a bunk bed?
Check your frame first. At 29cm deep, this is a taller mattress than many bunk and mid sleeper frames are designed for, and a mattress that sits too high reduces the effective height of the safety rail. Measure from the slats to the top of the rail before buying, and follow the frame maker's maximum depth guidance.
Will the UK single UltraGel 1000 fit in a small child's bedroom?
In most cases, yes. The mattress is 90 x 190cm and we suggest allowing at least 2.1m x 2.8m of floor space, which leaves room to open drawers and walk around the bed. In a room shared by siblings, two singles plus a walkway need more, so sketch the layout with your actual room measurements first.
Is a UK single big enough for an adult on this mattress?
For one adult, generally yes: at 3ft x 6ft 3in it's the standard UK one-person size, and the medium soft pillowtop suits lighter bodies well. Taller or broader adults, or anyone who moves around a lot in the night, may find 90cm restrictive, in which case the UK small double is 30cm wider and the same length.
Is this a good mattress for a guest room?
It's a strong candidate if your guests prefer a softer feel. The pillowtop gives a cushioned, sink-in surface, and the single footprint means you can fit two beds in a spare room rather than one. Guests who like a firm platform, or who sleep on their front, may find it a little too yielding.
What bedding fits the UltraGel 1000 in a UK single?
Standard UK single bedding fits: single sheets and a 135 x 200cm single duvet, which are the cheapest and most widely stocked of any size. Because the mattress is 29cm deep with a pillowtop, choose fitted sheets with a deep enough skirt, ideally labelled for mattresses around 30cm, so the corners don't ping off overnight.