The Silentnight UltraGel Cool-to-Touch 3000 Mirapocket Firmer Mattress is a thick pillow-top pocket-sprung hybrid for sleepers who want a firm feel with a cooler first-contact surface. It combines a cool-to-touch cover, UltraGel comfort, Mirapocket springs, and mini springs for buoyant, zoned support. In our testing, it felt stable, easy to move on, and strong at the edges, though some side sleepers may want more give at the shoulders and hips.
Table of Contents
Product Overview
| Mattress | Overall Score | Pros | Cons | Ideal For |
| Silentnight UltraGel Cool-to-Touch 3000 Mirapocket Firmer Mattress | 4.3/5 | Cool surface feel, firm support, strong edges | Can feel stiff at the shoulders and hips; tall profile | Back sleepers, stomach sleepers, hot sleepers who dislike sink-in foam, and couples who want easier movement |
Final Verdict
If you want a firm, lifted feel with a noticeably cool surface at bedtime, this mattress has a clear appeal. In our testing, the spring system kept movement easy and the edges stayed dependable for both sitting and sleeping near the side. The trade-off is that the firmer finish may feel too rigid for lightweight or shoulder-sensitive side sleepers.
Who It's For
- Back sleepers who want a steady, aligned feel
- Stomach sleepers who need strong midsection support
- Couples who value easy repositioning more than a deep foam hug
Who It Isn't For
- Lightweight side sleepers who need more give at the shoulders
- Anyone who wants a slow, deep memory-foam cradle
- People who prefer a plush, cloud-like surface

How We Tested It
As part of our mattress testing process, I slept on this mattress nightly and rotated between back and side positions while reading and working in bed to stress support and posture. Marcus focused on cooling and hip support during longer back-to-stomach stretches, while Jenna and Ethan handled partner-movement checks for motion isolation. We scored support, cooling, pressure relief, motion isolation, responsiveness, edge support, and durability based on overnight comfort, morning stiffness, and repeatable sit-and-roll tests.
Our Testing Experience
The first thing we noticed was the cool hand-feel, followed by a firmer, buoyant surface that kept the hips from sinking too far. Rolling from side to back felt easy, and the edge stayed steady when sitting down. Marcus liked the stronger pushback under his hips and found heat buildup more manageable than on denser foams. Jenna and Ethan thought motion control was decent for a spring mattress, though you still feel some bounce when a partner gets in quickly.
What we liked
- Easy movement with a firm, lifted feel
- A cool-to-touch surface that is noticeable at bedtime
- Stable edge support for sitting and sleeping near the side
Who it is best for
- Back sleepers who want firm alignment
- Stomach sleepers who need flatter support
- Couples who want responsiveness and stronger edges
Where it falls short
- Side sleepers who need deeper cushioning at the shoulders and hips
- People who want a very quiet, muted foam feel
- Anyone sensitive to a tall pillow-top profile

Pros & Cons
| Pros | Cons |
| Noticeably cool surface feel | The firm finish can create shoulder and hip pressure for some side sleepers |
| Responsive spring lift makes turning easy | Partner movement is still somewhat noticeable |
| Strong perimeter support | The tall profile can feel high on some bed frames |
| Less stuck-in-bed feel than denser foams | Not ideal if you want a deep, slow foam cradle |
Details
- Mattress type: pocket-sprung hybrid with a pillow-top finish
- Feel: firm
- Comfort materials: UltraGel, mini pocket springs, and a microquilted top
- Support core: 2000 Mirapocket springs with zoned support plus 1000 mini springs
- Thickness: 37 cm (about 14.6 inches)
- Sizes: Single, Small Double, Double, King, and Super King
- Edge support: yes
- One-sided: yes, with side turning handles
- Guarantee: 5 years
- Fire resistance: conforms to BS7177:2008 for home use
- Retail pricing, discounts, delivery perks, and trial terms vary by seller

Review Score
| Metric | Score | Remarks |
| Support | 4.6/5 | In our testing, the firm, buoyant pushback kept the midsection steady and helped prevent hip sink. |
| Cooling | 4.4/5 | The cool-to-touch cover stood out at first contact, and the springy build felt less stuffy than denser foams. |
| Pressure Relief | 4.0/5 | The pillow-top helps, but the firmer finish can still press on the shoulders and outer hips. |
| Motion Isolation | 4.1/5 | It felt calmer than a traditional open-coil bed, though the responsive build still carries some bounce. |
| Responsiveness | 4.5/5 | Quick rebound made it easy to roll and change position without feeling stuck. |
| Edge Support | 4.4/5 | The perimeter felt dependable for sitting, getting dressed, and sleeping near the edge. |
| Durability | 4.2/5 | The thick build, spring support, and multi-year guarantee suggest solid long-term support. |
Choosing Guide
Choose this mattress if you want a firm feel, easy movement, and a cooler surface, especially for back or stomach sleeping. If you mostly sleep on your side, consider whether you need more shoulder cushioning than a firm pillow-top usually gives. If you want more pressure relief, the Helix Midnight Luxe is worth considering. If you prefer a more traditional luxury innerspring feel with strong spinal support features, the Saatva Classic may be a better fit.

Limitations
The firm finish can feel too upright for lightweight or shoulder-sensitive side sleepers, even with the pillow-top. The springy response that helps you move can also mean you feel more partner energy than on dense, slow foams. The 37 cm profile also adds noticeable height, which may matter if your bed frame already sits high.
Vs. Alternatives
Why choose this mattress
- A cool-to-touch surface with a firmer, lifted feel
- Zoned pocket-spring support that stays steady under the hips
- Easy repositioning on a responsive, spring-assisted surface
Alternatives to consider
- Helix Midnight Luxe for more side-sleeper cushioning and a medium feel
- Saatva Classic for a more traditional innerspring luxury feel
- Tempur-Pedic TEMPUR-Adapt for deeper contouring and a stronger foam cradle
Pro Tips
- Give it about a week before deciding how the firmness feels.
- Use deep-pocket sheets so the corners stay secure on the tall profile.
- If side sleeping feels too firm, try a thin, breathable topper before changing mattresses.
- Rotate it head to foot from time to time to keep wear more even.
- Pair it with a sturdy foundation so the surface stays even.
- If you sleep hot, use breathable bedding so the cool-to-touch cover can do more of the work.
FAQs
Is this mattress too firm for side sleepers?
If you are a dedicated side sleeper, it may feel too firm through the shoulder and outer hip. In our testing, it worked better for mixed sleepers than for all-night side sleeping.
Does the cool-to-touch feel last all night?
The cooling sensation is strongest when you first lie down. After that, it shifts to a more temperature-neutral feel, though we still noticed less heat buildup than on denser foams.
How is motion isolation for couples?
It is calmer than a traditional bouncy spring bed, but not fully muted. Normal turning was fairly controlled in our tests, which is helpful for couples, while sudden movement was easier to notice.
Do I need to flip it?
No. It is a one-sided mattress, so regular head-to-foot rotation is the main maintenance step.