Description
- 1886 pocket springs (in king size)
- Very firm comfort grade
- Quilted and layered with cooling ActiGel® foam
- Bouncy PurFibre® for comfort and support
- Knitted ActiCool® cover is instantly cooling
- Luxurious cushion top for extra depth
- Fully hypoallergenic finish
- Mattress depth: 28cm
- Made in the UK
- Single-sided
- Comes with 100-Night Comfort Guarantee
- Rest easy with a 10-year guarantee
- Free UK delivery
TheraPur ActiGel® Glacier 1800 Mattress – Extra Firm Support with Cooling Comfort
The TheraPur ActiGel® Glacier 1800 Mattress is designed for sleepers who want extra firm support combined with advanced cooling technology. Featuring high pocket spring counts, innovative gel-infused foams, and breathable fibres, this mattress delivers refreshing comfort alongside excellent pressure distribution.
If you’re looking for a similar cooling mattress with a softer feel, consider the TheraPur ActiGel Arctic 800 Mattress, which offers balanced support with enhanced cushioning.
Pocket Spring Support That Moves with You
At the heart of the mattress are individually wrapped pocket springs, with up to 1886 springs in king size, working independently to support your movements while minimising sleep disturbance for your partner.
Layered alongside the springs, PurFibre® adds long-lasting bounce and resilience, helping the mattress maintain its shape and responsive feel over time.
Cooling Comfort with ActiGel® Technology
To keep you comfortably cool, ActiGel® foam is stitched directly into the quilted top layer, positioning the cooling gel as close to your body as possible. This design enhances airflow and helps regulate temperature throughout the night.
Beneath the quilting sits an additional 2 cm layer of ActiGel® foam, which adapts to your body’s shape, supports your joints, and further promotes heat dissipation.
Luxurious Cushion Top and Breathable Cover
An opulent cushion top adds extra depth and comfort, enhancing the mattress’s premium feel without compromising firmness.
The surface is wrapped in an ActiCool® knitted cover, engineered to draw heat away from the body for a cooler, more comfortable night’s sleep. The fully hypoallergenic finish makes it suitable for allergy-sensitive sleepers.
Product Overview
| Specification | Details |
|---|---|
| Comfort & Feel | |
| Comfort Grade | Very Firm |
| Mattress Depth | 28 cm |
| Support & Materials | |
| Spring Count | 1120 (Single), 1419 (Small Double), 1640 (Double), 1886 (King), 2296 (Super King) |
| Filling | 2 cm ActiGel® foam and PurFibre® |
| Cover & Cooling | |
| Cover Fabric | ActiCool® knitted cover |
| Cooling Technology | ActiGel® foam quilting and breathable fibres |
| Construction & Origin | |
| Construction Type | Single-sided |
| Country of Origin | Handmade in the UK |
| Warranty & Delivery | |
| Guarantee | 10 years + 100-Night Comfort Guarantee |
| Delivery | Free UK delivery (Room of Your Choice available at extra cost) |
Who Is This Mattress Best For?
-
Sleepers who prefer an extra firm feel
-
Those who tend to sleep hot
-
Back and stomach sleepers
-
Couples needing reduced motion transfer
-
Allergy-sensitive users
FAQs
Is the TheraPur Glacier 1800 mattress good for hot sleepers?
Yes. ActiGel® foam and the ActiCool® knitted cover work together to regulate temperature and keep you cool throughout the night.
How firm is the Glacier 1800 mattress?
It has a very firm comfort grade, offering minimal sink-in and strong support, ideal for back and stomach sleepers.
Does this mattress reduce partner disturbance?
Yes. Individually wrapped pocket springs respond independently, helping to minimise motion transfer.
Is the mattress suitable for allergy sufferers?
Yes. The mattress has a fully hypoallergenic finish and breathable materials that help maintain a clean sleep surface.
Can the mattress be flipped?
No. This is a single-sided mattress designed to maintain comfort and performance without flipping.
Disclosure: Prices are updated periodically and are subject to change. Price refers to king size, last updated clearance price 26.05.2026. If you make a purchase using one of the links on this site, we may earn a small commission at no added expense to you.
