Firmness
Firm
Type
Hybrid
Depth (cm)
25
Number of Layers
2
Trial Period (nights)
60
Warranty (years)
5
Price Range
£314 to £596
Best Sleeping Position(s)
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
The main draw here is value. You get memory foam and 1,000 individually nested pocket springs (based on the king size, with counts adjusting pro-rata for other sizes) at a price that's hard to argue with, starting from £314. The springs react independently to weight and movement, which means less disturbance when a partner shifts in the night. It's treated with Purotex, a natural probiotic that combats allergens, a genuine plus if you suffer with dust sensitivities. Yes, it's a fairly simple two-layer build, but that simplicity keeps the price down without cutting the core comfort. Silentnight backs it with a 60-night trial and a 5-year guarantee, and the company is a full member of the Furniture Industry Sustainability Program.
Key Features & what's inside
- Memory Foam Comfort Layer. A responsive memory foam layer that gently moulds to your body's contours, which means pressure points like hips and shoulders get some welcome relief. It absorbs energy as you move, so you feel cradled rather than bounced.
- Mirapocket Spring Support System. 1,000 individually nested pocket springs (counted on the king size, pro-rata for other sizes) that react independently to your body weight and movement. In practice this means zoned support that keeps your spine aligned and limits motion transfer across the bed.
Layer details from silentnight.co.uk product page, September 2026.
Who's it NOT for?
If you prefer a soft, sink-in feel, this medium/firm mattress will likely feel too solid. Memory foam can also hold warmth, so hot sleepers may want to look at breathable alternatives. And if you like flipping your mattress to even out wear, note this one is single-sided and rotate-only.
Silentnight Memory 1000 Mirapocket Mattress
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Is the Silentnight Memory 1000 Mirapocket firm or medium?
Silentnight's own product page describes it as medium/firm, although some retailer listings label it simply as firm. In practice, expect a supportive feel with a softer memory foam surface that moulds to you. It suits back and front sleepers well, though lightweight side sleepers may find it slightly firm.
Does the Silentnight Memory 1000 come with a trial period?
Yes. Silentnight offers a 60-night trial when you buy from them, along with a 5-year guarantee. Delivery is quoted at 14 days. If you buy through a retailer, check their terms, as trial and returns policies can differ from Silentnight's own.
Can you flip the Silentnight Memory 1000 Mirapocket mattress?
No. Silentnight describes this as a single-sided mattress, so the memory foam comfort layer sits on top and only that side is designed for sleeping on. You should rotate it regularly instead of flipping it to help the surface wear evenly.
What sizes does the Silentnight Memory 1000 Mirapocket come in?
It's available in UK Single, Small Double, Double, King and Super King, with prices ranging from £314 to £596 depending on size and retailer. The mattress is 25cm deep. Note that the 1,000 spring count is based on the king size and adjusts pro-rata for smaller or larger sizes.
Is the Silentnight Memory 1000 good for allergies?
It's treated with Purotex, a 100% natural probiotic that combats allergens, which is helpful if you're sensitive to dust. Silentnight also states the mattress is tested to exceed all British standards. That said, no treatment eliminates allergens entirely, so regular airing and washing bedding still matters.
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