TheraPur ActiGel® Tundra 5000 Combination Mattress
- In-stock
- Finance available
- Free delivery
- Returns
- Support: Pocket Spring
- Comfort: Gel Foam
- Brand: TheraPur
From £1299.00
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BedBoy Score
A composite score drawn from aggregated customer sentiment across verified reviews, with construction-type benchmarks for categories where reviewer commentary is limited. See our scoring methodology.
across 1 measured categories
Per-category breakdown below. The composite is the unweighted mean of every scored category, rounded to one decimal place.
- Brand
- TheraPur
- Retailer
- Dreams
- Delivery time
- Good
- Customer sentiment
- Average
- Guarantee
- Excellent
About the TheraPur ActiGel® Tundra 5000 Combination Mattress
Last checked
Cooling is the organising idea here, with support built around it rather than treated as a cover-only extra. The TheraPur ActiGel® Tundra 5000 is a combination mattress, pairing a spring-based support system with 5cm of zoned ActiGel® foam and a graphite-infused ActiCool®+ cover, so its feel should sit closer to a responsive cooling hybrid than a slow-sinking memory-foam mattress. It is sold with a firm comfort grade. That is important because the gel layer is not being used to create a plush, enveloping surface; it is there to add pressure relief over the back and hips while keeping the top of the mattress comparatively buoyant. A 5cm gel layer is a proper comfort layer, not just a token cooling laminate, and that is more generous than the thin gel treatments often found on cheaper memory-foam hybrids. The spring element should do the heavier lifting under load, while the micro-spring-style comfort described in buyer feedback points to a surface that reacts quickly rather than holding the body in a foam cradle. The graphite cover is the more unusual part of the build: cooling covers can be mostly a cool-to-touch finish, but this one is also pitched around moisture movement, which is the more useful claim for warm sleepers over a whole night.
The 5cm zoned gel layer and firm spring support make most sense for back sleepers, front sleepers and people who dislike the dipped-in feel of standard memory foam. Praise tends to cluster around three things: a fresher initial surface, stable support through the lower back and hips, and a firmer edge that makes more of the mattress usable for couples. Sleep disturbance also appears to reduce for those sharing a bed, with movement described as controlled rather than lively, which fits the combination-spring construction better than an open-coil mattress would. The firmness is the caution. One repeated theme is adjustment: the bed can feel firmer than expected at first, and at least one buyer solved that with a thin topper, so lighter side sleepers wanting shoulder sink may find the comfort grade too braced. The cooling story is broadly supported by the feedback, especially from warm sleepers, but it should not be read as a soft hotel-top mattress with a cold cover; the support-first feel is still the dominant character. If heat build-up and firm back support are the problem, this works; if deep cushioning or side-sleeper softness matters more, a softer memory-foam hybrid or plusher pocket-sprung tier makes more sense.
Pros and Cons
Pros
- Owners highlight the mattress's cooling cover as effective for warm sleepers.
- Users report the 5cm ActiGel® layer providing excellent pressure relief for back and hips.
- Many buyers mention the firmness is suitable for back sleepers needing consistent support.
- Recent reviews note excellent edge support, maximising the usable sleeping area.
Cons
- Several users find the mattress firmer than expected after testing in-store.
- Some owners experience initial discomfort during adjustment to the mattress.
- Low ratings mention the mattress lacking a plush feel for those preferring softer options.
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Written by
Giselle Green, Editor in Chief
Last checked by Giselle Green on . Scoring follows our scoring methodology.
Specifications
Manufacturer specifications without the jargon, easy to scan and compare.
Firm comfort support rating - feels solid and supportive
A firm comfort support rating indicates a mattress that provides a robust sleep surface, offering substantial support for the spine and pressure points. This level of firmness is particularly well-suited for individuals who prefer a stable and supportive sleeping area, often helpful for those with back pain or those who sleep on their stomach or back.
100 Night Comfort Guarantee - gives you peace of mind when you buy
A 100 Night Comfort Guarantee allows for a trial period where the product can be tested in your own home environment to see if it meets personal comfort standards. If it doesn't meet your expectations, it can be returned for a refund or exchange, offering flexibility and assurance in purchasing decisions.
Made locally in the UK - British craftsmanship at its finest
Expertly crafted locally, this specification ensures exceptional quality and supports local industry. Buying products made in the UK often results in superior durability and reduced environmental impact due to shorter transportation distances.
Responsive pocket springs - individually wrapped for targeted support
Individually wrapped pocket springs adjust independently to body contours, offering personalized support and reducing motion transfer. This construction enhances comfort by evenly distributing body weight, ensuring restful sleep.
Adaptive micro springs - respond to even the tiniest movement
Enhanced flexibility ensures support tailored to even slight shifts in position, reducing potential pressure points. This feature promotes uninterrupted rest by accommodating movement efficiently.
Sumptuous pillow top - for an extra layer of cosy comfort
An additional pillow top layer enhances softness and delivers a more luxurious sleeping experience. This feature ensures a plush feel, contributing to an overall increase in comfort during rest.
ActiGel® technology - for advanced cooling and support
Graphite ActiCool®+ cover - offers TheraPur®’s coolest ever feel
Extended 10-year guarantee - so you can rest easy in lasting comfort
Reader reviews of the TheraPur ActiGel® Tundra 5000 Combination Mattress
BedBoy publishes reader-submitted reviews to broaden the sentiment sample. Reviewer purchase status is not independently verified at submission. For verified-purchase ratings, see the Trustpilot block below. Submit a review, quoting 131-01265 in the subject line.
The Tundra 5000 is designed to provide a cooler and highly supportive sleep surface. Its cooling cover delivers an instantly fresher feel, helping sleepers drift off comfortably without overheating. The 5cm ActiGel® layer offers effective pressure relief for the back and hips while maintaining a stable, non-sinking feel. Pocket and micro springs work together to keep movement controlled, reducing disturbances from a partners adjustments throughout the night, while the reinforced edge support maximises the usable sleeping area. With its firmer comfort grade, this mattress is well-suited to back sleepers who need strong, consistent support from night to morning.
A great night's sleep on a very comfortable mattress
I think maybe we ordered a slightly firmer mattress than we experienced in the store. Although since adding a thin topper this has given us as great sleeping experience. I feel my back is now feeling much better and I actually feel taller !
Solid support and cooling with a firm edge. After a few nights adjusting to it my sleep has been less disturbed and deeper.
Verified retailer reviews
Independent Trustpilot reviews of Dreams.
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