If you are searching for a budget memory foam mattress under £100, start by checking whether the mattress is actually made with memory foam. If your priority is simply an affordable, clearly specified foam mattress, compare the current All Foam Budget Mattresses range before assuming that memory foam is essential.
The words budget, memory foam and under £100 are often grouped together in search results, but they describe three different things. Budget describes price. Memory foam describes a particular viscoelastic material. Under £100 is a price ceiling. A mattress can meet one or two of those descriptions without meeting all three.
That distinction matters because a product sold cheaply is not automatically memory foam, and a mattress containing a small amount of memory foam may feel very different from a deeper layered memory foam mattress.
Can you buy a memory foam mattress for under £100?
Quick answer
It is possible to find mattresses advertised around or below £100, including products described as memory foam. However, the useful question is not whether the words memory foam appear in the title. Check how much memory foam is actually used, the total mattress depth, the support layer, the cover, the size and the warranty before comparing value.
A very low headline price may also apply only to the smallest size. Always select the exact mattress size you need before deciding whether a product really sits within your budget.
First check what the mattress is actually made from
Memory foam is a slow-response viscoelastic foam designed to become more yielding under warmth and pressure. It is normally used as a comfort layer above a more supportive foam base rather than as the entire mattress construction.
Standard polyurethane foam responds more quickly and can be used as the main mattress core. It is a different material and should not be presented as memory foam simply because both products are foam.
All Foam keeps those categories separate. The All Foam Eco Mattress is not a memory foam mattress. It uses a straightforward 6-inch premium medium-firm foam construction beneath a Coolmax cover. The premium memory foam mattress range uses separate memory foam comfort layers as part of deeper layered constructions.
If you are unsure which feel you actually want, our budget foam vs memory foam mattress guide explains the difference in response and construction without treating one material as automatically better than the other.
Do not judge memory foam by the product title alone
A listing can use the phrase memory foam while giving very little information about the thickness of the memory foam layer. That makes meaningful comparison difficult.
Look for a clear construction specification. Ideally, the product page should tell you:
- the total mattress depth
- whether there is a separate memory foam layer
- how deep that layer is
- what supports the memory foam underneath
- the stated firmness or feel
- the cover supplied with the mattress
- the exact dimensions for the selected size
- the warranty that applies to that model
If those details are missing, the low price tells you less than it appears to.
Why the support foam matters
Memory foam is usually only one part of a mattress. The foam underneath it provides the main support structure and helps determine the total depth and overall feel.
A shallow memory foam layer over a thin base is not equivalent to a deeper mattress with a substantial support core. Likewise, a thicker memory foam layer is not automatically better if the rest of the construction does not suit the sleeper or the bed base.
This is why comparing mattresses purely by the phrase memory foam can be misleading. The complete build matters.
Check whether the under £100 price applies to your size
Many mattress prices are shown as a starting price. That can be useful, but it usually means the smallest available size.
If you need a Double, King Size or Super King, select that size before comparing prices. A mattress advertised from under £100 may move well beyond that figure once a larger size is selected.
For All Foam's current budget range, the Single Eco Mattress is the size that starts below £100. It is a standard foam mattress rather than memory foam, which is why the product page makes the material distinction clear.
Our cheap vs budget foam mattress guide explains why a low starting price should always be compared with the specification rather than treated as a quality grade.
Is a standard foam mattress a better budget choice?
It can be if you do not specifically need the slow, contouring response of memory foam.
A straightforward standard foam mattress may use fewer layers and a simpler construction. That can lower the purchase price while still giving you a clearly defined depth and firmness.
The All Foam Eco Mattress follows that approach. It uses one 6-inch premium medium-firm foam core, a Coolmax cover, a double-sided design and a 3-year warranty. It does not include a hidden or token memory foam layer simply to use the phrase memory foam in the product name.
For customers who prefer a quicker-response foam feel and want to keep the purchase price down, that simplicity can be useful.
When should you choose genuine memory foam instead?
Choose memory foam because you want its material response, not simply because the phrase sounds more premium.
Memory foam may suit customers who prefer a slower, more contouring comfort layer. All Foam's premium memory foam mattresses are separate from the Budget Mattress range because they use deeper layered constructions and different warranty terms.
If that is the feel you want, compare the actual premium mattress specifications rather than trying to force a budget standard foam mattress into the memory foam category.
The reverse is also true. If you prefer a quicker response and uncomplicated medium-firm foam construction, paying extra for memory foam may not solve a problem you have.
Look beyond the foam type
Material is only one part of choosing a mattress. Before ordering, also check the following.
Mattress depth
A lower-cost mattress may have a shallower profile. Check the total depth and think about the finished bed height, the bed frame and the level of cushioning you expect.
The Eco Mattress uses a 6-inch construction. Our guide to whether a 6-inch foam mattress is thick enough looks at the factors that affect that decision.
Firmness
Firmness labels are useful but subjective. Body weight, sleeping position and the support underneath the mattress can change how the same foam feels.
Bed base
A new mattress should sit on a sound, level and suitable base. Broken slats, excessive gaps or an uneven frame can affect the feel of any mattress, regardless of price.
Cover
Check whether a finished cover is included and what care information applies. Do not assume every low-price mattress includes the same type of cover.
Warranty
Check the warranty for the exact model. A warranty is not the same as a comfort trial and should not be used as a prediction of how every customer will experience the mattress.
Are memory foam mattresses under £100 good value?
They can be, but only if the specification suits what you actually need.
A product is not good value merely because memory foam appears in the title and the starting price is below £100. The mattress still needs to be the correct size, have a suitable overall construction and work with your bed base and comfort preference.
If you cannot find the layer depths, exact dimensions or warranty, compare another product before ordering.
Likewise, do not dismiss a standard foam mattress because it does not contain memory foam. A simpler foam construction can be a deliberate way to keep the price lower.
Avoid these common under £100 buying mistakes
- assuming every foam mattress is memory foam
- comparing only the smallest advertised starting price
- ignoring the depth of the memory foam layer
- overlooking the support foam underneath
- choosing a mattress before measuring the bed frame
- treating a warranty as a comfort guarantee
- buying from a vague product page because the discount looks large
- assuming a more complicated construction is automatically more suitable
The same basic rule applies throughout: compare the specification that affects the mattress, not just the words used to advertise it.
Quick answers
Is the All Foam Eco Mattress a memory foam mattress?
No. The Eco Mattress uses a 6-inch premium medium-firm standard foam construction. It does not contain a separate memory foam comfort layer.
Does All Foam sell budget memory foam mattresses?
No. All Foam's Budget Mattress range and premium Memory Foam Mattress range are separate categories. The Eco Mattress is the budget standard foam option, while the memory foam mattresses use deeper layered constructions.
Can I buy an All Foam mattress for under £100?
The current Single Eco Mattress starts below £100. Check the live Budget Mattresses page before ordering because current pricing and promotion eligibility should always be confirmed at the time of purchase.
What should I check on a cheap memory foam mattress?
Check the actual memory foam layer, total depth, support layer, exact size, firmness description, cover, warranty and final price for the size you need.
Is memory foam always better than standard foam?
No. The materials respond differently. Memory foam has a slower contouring response, while standard foam generally responds more quickly. The better choice depends on the feel and construction you prefer.
Final answer
A budget memory foam mattress under £100 can look attractive, but the material label and headline price are not enough to judge value. Check how much memory foam is used, what supports it, the total depth, size, cover and warranty.
If your priority is simply an affordable foam mattress with a clearly stated construction, the All Foam Budget Mattresses range provides a separate standard-foam option. If you specifically want memory foam, compare the premium memory foam range instead so you are choosing the material for the right reason.
