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Silentnight Delphia Mattress

4.8/5
2000 Mirapocket springs and 1000 mini springs sit beneath cool-to-touch UltraGel and SmartGel comfort layers, medium-firm overall.
iconMedium Firm
iconGel Foam
icon3000 Pocket Springs
icon37cm depth
  • UltraGel™ cool-to-touch layer
  • 2000 Mirapocket® pocket springs and 1000 mini springs
  • SmartGel™ Comfort Layer
  • 5-year guarantee
Price Promise

Seen it cheaper somewhere else? We'll match it — that's our Price Promise.

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£1122
without promo £1320
Save £198
Use promo code SNOOZE15 for quoted price
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Description
Specifications
Dimensions
Available in 8 Showrooms
5 Year Guarantee
Flexible Credit Options
How It Feels

How firm is it?

Medium Firm

Medium Firm is the level of support to the body, suitable for average to heavily weighted people. This is not a comfort rating.

About the Brand
Est. 1946 4.66 brand rating

Silentnight is the UK's most trusted sleep brand, renowned for quality craftsmanship and tailored support. With a range of mattresses featuring Miracoil and Mirapocket systems, they ensure optimal spinal alignment and comfort for every sleeping position, making a good night's sleep accessible to everyone.

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Real Sleepers

What our customers say

4.8
Product Rated 4.8 Stars
5 reviews
Average Customer Ratings
Comfort5.0
Durability5.0
Quality5.0
Value for money4.8
Rating Snapshot
5 stars
4
4 stars
1
3 stars
0
2 stars
0
1 stars
0
Excellent4
Great1
Fiona Jones-church
Customer Rated This 5 Stars 5/5
16 Mar 2026
This is the best nights sleep Ive had in years. Firm but soft. Great support. I no longer wake up in pain or with numb leg or arms. I have long term back pain which is significantly reduced.
Durability5
Value5
Comfort5
Quality5
Laura Preece
Customer Rated This 5 Stars 5/5
01 Jun 2026
The best mattress we have ever had. Great nights sleep and we never want to get up so so comfy!
Comfort5
Durability5
Value5
Lee Crocker
Customer Rated This 5 Stars 5/5
05 Feb 2026
We went from a firm to this medium firm silent night mattress and it is much better for us.
Quality5
Durability5
Value5
Comfort5
David Jermy
Customer Rated This 5 Stars 5/5
06 Nov 2025
Very well made and comfortable. Very pleased we got this.
Durability5
Quality5
Comfort5
Value5
Mark Johnson
Customer Rated This 4 Stars 4/5
20 Nov 2025
Very heavy. Can be difficult to turn .
Quality5
Comfort5
Value4
Viewing 1 to 5 of 5
Our Promise

The Delphia Mattress has

A 60-night sleep trial Sleep on it at home — love it, or exchange it between nights 30 and 60.
A 5 year guarantee See exactly what's covered, and for how long.
Price Match Promise Seen it cheaper somewhere else? We'll match it.
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Good To Know

Frequently asked questions

What materials are used in the Delphia mattress?
The Delphia mattress features an UltraGel™ cool-to-touch layer and a SmartGel™ Comfort Layer, which work together to provide a comfortable sleeping experience. Additionally, it contains 2000 Mirapocket® pocket springs and 1000 mini springs that enhance support and comfort.
How does the pocket spring system work in the Delphia mattress?
The Delphia mattress has a pocket spring system where each spring is individually wrapped in its own fabric pocket. This design allows the springs to move independently, which helps the mattress adapt to your body's shape. It also reduces motion transfer, so you won't be disturbed by movements during the night.
Is the Delphia mattress suitable for all sleeping positions?
Yes, the Delphia mattress is designed to cater to various sleeping positions due to its body-moulding pocket spring system and the comfort layers. This ensures that it can provide adequate support whether you sleep on your back, side, or stomach.
How often should I rotate the Delphia mattress?
While the Delphia mattress is one-sided and does not require flipping, it is recommended to rotate it regularly to maintain even wear and prolong its lifespan.
What is the firmness level of the Delphia mattress?
The Delphia mattress is designed to provide a balance of comfort and support, making it suitable for those who prefer a medium-firm feel. This level of firmness is achieved through the combination of the pocket springs and the SmartGel™ Comfort Layer.
Can I use the Delphia mattress on any bed frame?
Yes, the Delphia mattress is compatible with most bed frames, including slatted bases and solid platforms, as long as they provide adequate support. It's always a good idea to ensure the base is suitable for pocket sprung mattresses.
What kind of care does the Delphia mattress require?
The Delphia mattress requires minimal care; simply rotate it occasionally to maintain its shape and performance. Regularly checking for dust and debris and using a mattress protector can also help keep it clean and in good condition.
Is the Delphia mattress fire safe?
Yes, the Delphia mattress is rated Source 2 for domestic flammability, meaning it meets low hazard standards for general domestic use. This ensures that it has been tested for safety in residential environments.
How does the UltraGel™ layer affect the sleeping experience?
The UltraGel™ cool-to-touch layer in the Delphia mattress helps regulate temperature, providing a cooler sleeping surface. This can enhance comfort, especially for those who tend to sleep hot during the night.
What is the guarantee period for the Delphia mattress?
The Delphia mattress comes with a 5-year guarantee, which covers any manufacturing defects and provides peace of mind regarding its durability.

60-night sleep trial: exchanges only, not refunds. Activated by purchasing a mattress protector at the point of order. Request your exchange between nights 30 and 60 of the trial; a £50 exchange fee applies. Full terms.

Recommendation rate: the percentage of verified Trustpilot reviews for this product with a rating of 4 stars or more, rounded down.

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