Firmness
Medium Firm
Type
Hybrid
Depth (cm)
25
Number of Layers
3
Trial Period (nights)
100
Warranty (years)
5
Price Range
£234 to £434
Best Sleeping Position(s)
Certifications
Assessed from Horizon's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
This mattress makes sense if you want hybrid comfort on a modest budget. The bamboo infusion in the memory foam helps dispel heat and moisture, which means you're less likely to get the clammy feeling traditional memory foam can cause. The 1000 pocket springs move independently, so a restless partner is less likely to disturb you. It's hypoallergenic, comes in five UK sizes from Single to Super King, and delivery is flexible: free to most locations, with next day weekday delivery or a chosen weekday up to 60 days ahead, all with a two-hour slot. Room of choice delivery costs £20.00 and old mattress recycling is available for £35.00.
Key Features & what's inside
- Bamboo Memory Foam. A bamboo-infused memory foam layer moulds around your shape, which means built-up pressure on hips and shoulders is eased and aches are relieved. The bamboo adds breathability, helping to dispel heat and moisture.
- High Density Foam. A durable, cushioning layer of high density foam sits beneath the memory foam, adding comfort. It also helps reduce motion transfer, so you feel less of a partner's movement.
- Pocket Springs. 1000 pocket springs respond individually to each area of your body, which means personalised support rather than a one-feel-fits-all base. They also cut down motion transfer between partners.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
If you're a lightweight side sleeper, the medium to firm feel may press a little too hard on your shoulder despite the softer top layer. And if you're after a deep, hotel-style pillow top, the 25cm profile and budget-friendly build won't deliver that plush sink-in feel.
Horizon Adventurer 1000 Pocket Memory Mattress
Across owner reviews on mattressonline.co.uk, where it holds 4.6 from 149 reviews, customers commonly report comfortable, supportive sleep with fewer aches, describing the feel as firmer than medium with a softer top layer. Vacuum-packed delivery for easier handling and the material quality for the price also come up regularly.
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How firm is the Horizon Adventurer 1000 mattress?
Horizon rates it as medium to firm. Owner reviews describe it as firmer than a true medium, with a softer top layer from the bamboo memory foam. That suits back sleepers and most combination sleepers, although lightweight side sleepers may find it slightly too firm.
Does the Horizon Adventurer 1000 sleep hot?
It should run cooler than traditional all-foam mattresses. The memory foam is infused with bamboo for breathability, helping to dispel heat and moisture, and the pocket spring core allows air to move through the mattress. If you sleep very hot, it's a sensible pick at this price.
Is there a trial period for the Horizon Adventurer 1000?
Yes, it comes with a 100-night trial, so you can sleep on it at home before committing. There's also a 5 year guarantee covering manufacturing faults, which is reassuring at this price point.
How much does the Horizon Adventurer 1000 cost?
Prices run from £234.00 to £434 depending on size, with five UK sizes available: Single, Small Double, Double, King and Super King. For a 25cm hybrid with 1000 pocket springs and bamboo memory foam, that's honest value rather than a compromise.
How is the Horizon Adventurer 1000 delivered?
It arrives vacuum-packed, which owners say makes handling easier. Delivery is free to most locations with a two-hour time slot, and you can choose next day on weekdays, a weekday up to 60 days ahead, or a weekend. Room of choice delivery is £20.00 and mattress recycling costs £35.00.
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