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Silentnight UltraGel 3000 Cool-To-Touch Boxtop Medium Firm Mattress

4.8/5
Cool-to-touch gel comfort offers five times the breathability of standard memory foam, with 3000 pocket springs at a medium-firm feel.
iconMedium Firm
iconGel Foam
icon3000 Mirapocket™
icon37cm depth
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£917.15
without promo £1079
Save £161.85
Use promo code SNOOZE15 for quoted price
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Why This Mattress

Why buy the Silentnight UltraGel 3000 Cool-To-Touch Boxtop Medium Firm Mattress?

Every mattress is different. Scan for the ones that sound like you — if two or more fit, this is your mattress.

Thermal Control
Cooling
Sleep hot?
Breathable layers draw heat away from you overnight, for a cooler sleep if you tend to run warm.
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
4 reviews
Average Customer Ratings
Comfort5.0
Durability4.7
Quality5.0
Value for money4.3
Rating Snapshot
5 stars
3
4 stars
1
3 stars
0
2 stars
0
1 stars
0
Excellent3
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
Shirley Maynard
Customer Rated This 5 Stars 5/5
14 Nov 2025
Very expensive but very good mattress
Comfort5
Quality5
Value3
Sarah Pitkin
Customer Rated This 4 Stars 4/5
02 Jan 2026
Really good night's sleep,
Value4
Durability4
Quality5
Comfort5
Viewing 1 to 4 of 4
Our Promise

The UltraGel 3000 Cool-To-Touch Boxtop Medium Firm 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.
Good To Know

Frequently asked questions

What benefits does the gel-infused layer of the UltraGel 3000 provide during sleep?
The gel-infused layer of the UltraGel 3000 mattress offers several benefits, primarily focused on temperature regulation and comfort. It actively draws heat away from your body, ensuring a cool sleep environment, while its pressure-relieving properties help alleviate discomfort by adapting to your body's contours. Additionally, the open-cell structure of this layer enhances airflow, further contributing to a refreshing sleep experience without trapping heat.
How is the surface of the UltraGel 3000 finished?
The mattress has a micro quilted finish, which is created by stitching together the fabric and fillings, resulting in a patterned comfort quilt layer.
Is the UltraGel 3000 mattress reversible?
No, the UltraGel 3000 is a one-sided mattress, meaning there is no need to turn it over, but it is recommended to rotate it regularly.
What kind of top does the UltraGel 3000 have?
The mattress features a pillow top effect that appears separate from the mattress but is actually attached with a hidden return, filled with soft materials for extra comfort.
What type of spring system does the UltraGel 3000 use?
The UltraGel 3000 is equipped with a pocket sprung system, where each individual spring is encapsulated in fabric, allowing them to move independently for better body moulding and reduced motion transfer.
Does the UltraGel 3000 mattress help with temperature regulation?
Yes, the UltraGel material is designed to provide a cooling effect, helping to regulate temperature for a more comfortable night's sleep.
How does the UltraGel 3000 handle moisture?
The mattress includes vents located on the border, which allow it to breathe and effectively release damp air.
What is the fire safety rating of the UltraGel 3000?
The UltraGel 3000 has a Source 2 domestic flammability rating, indicating it is suitable for low hazard, general domestic use.
Can you explain how the 3000-spring system in the UltraGel 3000 mattress contributes to spinal alignment?
The 3000-spring system in the UltraGel 3000 mattress combines 2000 Mirapocket® pocket springs with 1000 mini springs, which work together to ensure optimal spinal alignment. The larger Mirapocket® springs provide robust support, adapting to your body's unique contours, while the mini springs cushion delicate areas, alleviating pressure points. This dual-layer design allows for independent movement of each spring, which helps to maintain a properly aligned spine throughout the night, reducing the risk of aches and promoting a healthier sleeping posture.
How does the UltraGel 3000 mattress perform for edge support?
The UltraGel 3000 mattress is designed with robust edge support due to its combination of 2000 Mirapocket® pocket springs and 1000 mini springs. This dual-layer spring system enhances stability and ensures that the edges of the mattress maintain their shape, providing a consistent sleeping surface across the entire area, which is particularly beneficial if you tend to sit or sleep near the edge. This means you can enjoy the full width of the mattress without feeling like you might roll off.

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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