Available 
Luna 4000 Plush Gel Memory Pocket Hybrid Mattress
from £379-£759.
£379-£759
Sizes tracked: Single, Small Double, Double, King Size, Super King
Luna Hybrid
Luna 4000 Support Gel Memory Pocket Hybrid Mattress review
The Luna 4000 Support Gel Memory Pocket Hybrid Mattress is a medium-to-firm hybrid to shortlist if you want pocket-spring support, gel foam comfort and five size options.
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Last verified: 2026-07-01
Quick verdict
The Luna 4000 Support Gel Memory Pocket Hybrid Mattress is a sensible shortlist pick for shoppers who want a steadier Medium to Firm feel, hybrid support and a size range that runs from Single to Super King. With prices from £389 to £799, it sits below the current peer median of £499, so it may appeal if you want a mid-range hybrid without moving into a higher price band. Check the live retailer page for your exact size, latest price and delivery details before deciding.
Available sizes and prices
Luna 4000 Support Gel Memory Pocket Hybrid Mattress is listed with 5 size options from £389-£799. The visible sizes include Single, Small Double, Double, King Size, so use the table to compare the option that matches the exact size, colour, format or specification you want. Always confirm the final checkout price, delivery charge and stock status on the retailer page.
| Size | Firmness | Price | Stock | Last checked | Link |
|---|---|---|---|---|---|
| Single | Check retailer | £389 | In stock | 2026-07-01 | View |
| Small Double | Check retailer | £519 | In stock | 2026-07-01 | View |
| Double | Check retailer | £579 | In stock | 2026-07-01 | View |
| King Size | Check retailer | £669 | In stock | 2026-07-01 | View |
| Super King | Check retailer | £799 | In stock | 2026-07-01 | View |
Key product details
These are the retailer details worth checking first for Luna 4000 Support Gel Memory Pocket Hybrid Mattress: Brand: Luna; Type: Hybrid; Sizes tracked: Single, Small Double, Double, King Size, Super King; Price range: £389-£799. Treat them as a quick fact sheet, then use the retailer page to verify any installation, warranty, delivery or model-number details before buying.
| Brand | Luna |
|---|---|
| Type | Hybrid |
| Sizes tracked | Single, Small Double, Double, King Size, Super King |
| Price range | £389-£799 |
| Owner rating signal | 4.7 out of 5 shown; review volume needs checking with the retailer |
| Last checked | 2026-07-01 |
What the product page says
Mattress Online describes this Luna model as a hybrid with pocket springs and a gel foam comfort layer, and the firmness rating is given as Medium to Firm. The page also mentions a 100-night comfort trial, a 10-year guarantee and BS7177:2008 fire-resistance wording for home use. That mix makes it easy to compare on paper, but you should still confirm the current size, depth and checkout extras on the retailer page.
What stands out from the wider comparison
The clearest value point is price: the Single starts at £389, which is below the comparable-product median of £499 in the current set. Variant coverage is also useful here, because the model is tracked in 5 sizes, more than the peer median of 4, so it gives you more room to match space and budget. The visible 4.7/5 owner rating with 27 reviews is encouraging, but the review volume is still modest, so treat it as a helpful signal rather than a final verdict.
Buyer trade-offs to weigh
If you are choosing between this and the softer Luna 4000 Plush, the main trade-off is feel: this Support version is rated Medium to Firm, while the Plush is the easier comparison if you want a softer surface. Against the Luna Memory 2500, the decision is more about whether you want the gel memory hybrid build here or a different price-and-spec balance from a lower-priced Luna option. Because the price changes by size, it is worth checking the exact room fit, bed-frame size and budget before you compare features.
Price and value benchmark
At £389 for the smallest listed size, this mattress enters the comparison set below the £499 peer median, which makes it competitive for a hybrid with a 100-night comfort trial and 10-year guarantee. The full spread climbs to £799 for Super King, so value depends heavily on the size you need rather than the headline entry price. Compare the exact size you plan to buy, because a good starting price can look less compelling once you move up the range.
How it compares with nearby alternatives
The nearest Luna comparison is the Luna 4000 Plush Gel Memory Pocket Hybrid Mattress, which starts slightly lower and may suit shoppers who want a softer feel rather than this model’s Medium to Firm brief. The Luna Memory 2500 Pocket Hybrid Mattress is the other key Luna option to check if you want a different price band and construction balance. If you are comparing outside Luna, look at other hybrids for support style, size spread and whether the trial and guarantee terms are similar.
How much weight to give the rating
The 4.7/5 owner rating is positive, but the product-level count is only 27 reviews, so it should not be treated as strong proof on its own. Product-specific review evidence outside the retailer ecosystem is also limited, which means the rating is better used as a confidence cue than a decisive buy/no-buy signal. In practice, the stronger facts are the construction, firmness, size range and trial terms.
Who this mattress is likely to suit
The Luna 4000 Support Gel Memory Pocket Hybrid Mattress looks most relevant if you want a medium-to-firm hybrid and do not mind paying from £389 for the Single up to £799 for the Super King. Its pocket springs, gel foam comfort layer and 5 size options make it a practical shortlist for shoppers comparing support style, room fit and budget across the range. The retailer’s temperature-comfort angle may also appeal if you want a cooler-sounding material story, but that should be read as positioning rather than a guaranteed outcome.
Who should look elsewhere
If you want a softer, more sink-in feel, the Luna 4000 Plush is the more obvious comparison and may be a better fit. Shoppers who want a very different construction, a lower-budget hybrid or a clearly lighter-feeling mattress should compare cheaper alternatives before buying this one. It is also worth skipping this model if your bed frame, bedding or room size makes the deeper hybrid format awkward.
Comfort and support in everyday terms
On the Luna 4000 Support Gel Memory Pocket Hybrid Mattress, the pocket springs provide the main support structure and the gel foam comfort layer adds the top-level cushioning. In practical terms, that usually translates to a steadier feel than a soft, sink-in bed, which may suit shoppers who like medium-to-firm support from a hybrid build. There are no medical claims here, and the temperature-comfort angle should be treated as retailer positioning rather than a promise of cooling performance.
Value check
On value, this model looks fairly strong when you factor in the £389 entry price, the 100-night comfort trial, the 10-year guarantee and the five available sizes. The case is less about being the cheapest hybrid and more about whether the size you need still looks competitive once the price rises to £799 at the top end. If the Medium to Firm feel and hybrid format suit your preferences, it is a practical option to compare against similarly priced alternatives before you buy.
Good alternatives to compare
The closest alternatives to compare with Luna 4000 Support Gel Memory Pocket Hybrid Mattress include Luna 4000 Plush Gel Memory Pocket Hybrid Mattress, Luna Memory 2500 Pocket Hybrid Mattress, Bodyshape Gel 2000 Pocket Hybrid Mattress. Use these cards to check whether a nearby model gives you a better price, a more suitable specification or a clearer match for your space and budget.
Available 
Luna Memory 2500 Pocket Hybrid Mattress
from £345-£689.
£345-£689
Sizes tracked: Single, Small Double, Double, King Size, Super King
Available 
Bodyshape Gel 2000 Pocket Hybrid Mattress
from £335-£605.
£335-£605
Sizes tracked: Single, Small Double, Double, King Size, Super King
Retailer details used
Last checked 2026-07-01. The source list below is included to help you check the details behind the comparison. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.
More mattresses to compare
These related guides and reviews can help you compare nearby options before buying.
Questions about this mattress
Is the Luna 4000 Support Gel Memory Pocket Hybrid Mattress worth shortlisting for a medium-to-firm feel?
Yes, if you prefer a steadier hybrid with pocket springs and a gel foam comfort layer. The Medium to Firm rating makes it more suitable for shoppers who do not want a soft, deeply sink-in surface, and the five size options give you flexibility.
How does the price change by size?
The tracked price range runs from £389 to £799, so size has a big effect on value here. The Single is the cheapest listed option, while larger sizes rise steadily, so it is best to compare the exact size you need rather than focusing only on the starting price.
Does the 4.7/5 rating with 27 reviews make it a safe buy?
It is a positive sign, but not enough on its own to make the decision. The review count is still modest, so it is smarter to combine that rating with the listed construction, firmness, 100-night comfort trial and your preferred size before buying.
What is the difference between this model and the Luna 4000 Plush or Luna Memory 2500?
The main difference is feel and positioning. This Support model is Medium to Firm, the Luna 4000 Plush is the softer comparison, and the Luna Memory 2500 is the other key Luna alternative to check if you want a different price and spec balance.
Does the 100-night comfort trial improve confidence when buying online?
It helps because it gives you a longer decision window than a standard delivery-only purchase, but you should still read the retailer terms carefully. Always check what the trial covers, whether collection or return conditions apply, and how the guarantee is handled.