Silentnight Lift Replenish Hybrid 2000 Mattress Firm
Mattress
Silentnight Lift Replenish Hybrid 2000 Mattress Firm
Size
Firmness
Firm
Construction
Depth (cm)
32
Layers
4
Layer Details
- Latex. A plush, adaptive material that responds to your body shape, which means pressure relief at your shoulders and hips without losing the firm feel underneath. It sits at the top, so it's the surface you'll actually feel.
- EcoMemory Fibre. Made sustainably from recycled plastic, this layer adds cushioning while letting air move through it. That breathability helps you stay cooler than a solid foam layer typically would.
- Eco Comfort Fibre. Silentnight's eco-friendly fibres, also made from recycled materials. They add a further layer of soft padding between you and the springs.
- Mirapocket Springs. 2000 pocket springs that respond individually to your shape, with zoning to support spinal alignment and posture. In practice that means less roll-together with a partner and targeted pressure relief where you need it.
Layer details from mattressonline.co.uk product page, September 2026.
- Firm support for growing bodies: The zoned springs keep hips level rather than letting them sink, which means good spinal alignment for teenagers who are getting heavier year on year.
- Fits compact rooms: At 90cm wide, it leaves floor space for a desk and wardrobe; we suggest allowing at least 2.1m x 2.8m.
- Breathable for warm sleepers: The EcoMemory and Eco Comfort fibre layers let air move through, so a child who runs hot at night should stay a little cooler.
- Guest-ready feel: Latex over firm springs sits sleepers on the surface rather than in it, a feel most adult guests find agreeable for a night or two.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any UK size.
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 toy storage, you're kitting out a spare room or a study that doubles as guest space, or you're a solo adult sleeper in a compact room, perhaps a first flat where the frame came with the tenancy but the mattress didn't.
Consider another size if...
You're an adult who spreads out at night, or you share the bed even occasionally. 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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Will the UK single Silentnight Lift Replenish fit a bunk bed?
The 90 x 190cm footprint matches standard UK bunk and mid-sleeper frames, but check depth carefully. This mattress is 31.5cm deep, which is deeper than many top-bunk guard rails allow. Safety guidance usually asks for a clear rail height above the mattress surface, so measure your frame before ordering, particularly for a child's top bunk.
Is the Silentnight Lift Replenish UK single too firm for a child?
It's a genuinely firm mattress, which generally suits children and teens well because it keeps the spine supported as they grow. The latex top adds some give at the shoulder and hip. Lightweight side sleepers may find it a little unyielding, so a slim teen who sleeps mainly on their side is the one case to think twice about.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space. That leaves room to walk alongside the bed and open drawers or a wardrobe. In a child's room competing with a desk and toy storage, or a loft conversion where the bed sits under the slope, the 90cm width is what makes the layout work.
Is the UK single big enough for an adult guest?
Yes, for occasional use. At 3ft x 6ft 3in it's the standard one-person size, and the firm feel with 2000 pocket springs supports adults comfortably for a night or two. It also suits spare rooms that double as an office, or fitting two beds plus a walkway where one larger bed wouldn't leave space to move.
How much bigger is a UK double than this single?
The UK single is 45cm narrower than the UK double, and the two are the same length. If an adult will sleep on it every night, that extra width matters more than it sounds; we suggest at least 2.6m x 2.8m of floor space for the UK double. For a child or guest bed, the single is usually the better use of the room.