Contract, Student and Landlord Mattresses: Crib 5, Durability and Cost
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Buying mattresses for a rental property, an HMO, student accommodation or a guest house is a different problem from buying one for yourself. Comfort still matters, but it sits alongside fire regulations, durability under heavy turnover, cleanability and cost per year of service. A mattress that is perfect for a domestic bedroom can be the wrong — and in some settings non-compliant — choice for a let.
This guide explains the fire safety standard that applies to contract use, what actually wears out first in a rental mattress, and where the sensible spending line sits.
The fire safety standard is the part people miss
UK mattresses are tested against BS 7177, which sets ignition resistance levels. Domestic mattresses are typically Source 1 (low hazard). Contract environments require higher levels, and the one usually specified for commercial and institutional settings is Source 5 — commonly written as Crib 5, after the wooden crib used in the ignition test.
Where Crib 5 is generally expected includes hotels and guest houses, student halls, care homes, hostels, and many houses in multiple occupation. Requirements vary by property type, local authority and your insurer, so the responsible approach is to confirm what applies to your specific situation rather than assume. Landlords letting an ordinary single-family home usually fall under domestic rules, but licensed HMOs frequently do not.
The practical point: if a mattress listing does not state its BS 7177 source level, ask before ordering. Reputable contract suppliers publish it.
What actually fails in a rental mattress
The comfort layer, long before the springs
In most budget mattresses the soft upper layers compress permanently well before the support unit gives up. That is what produces the familiar body-shaped dip. Denser foam or a quilted top with better fibre recovery buys more years than upgrading the spring count.
Edges, from people sitting to put shoes on
Rental mattresses take far more edge loading than domestic ones, particularly in single rooms where the bed doubles as seating. Reinforced borders matter more here than they do at home.
Stains, which end a mattress early
Most contract mattresses are replaced because they are stained rather than because they are worn out. A waterproof protector on every bed is the single cheapest way to extend replacement cycles, and it is far less expensive than the mattress it protects.
Comparing the practical options
Advertised starting prices at the time of writing; contract specification and size change the figure.
| Type | Suits | Typical life in a let | Watch out for |
|---|---|---|---|
| Open coil, Crib 5 | Student rooms, high turnover, tight budgets | Shortest | Motion transfer is poor, but rarely relevant in single occupancy |
| Hybrid foam and spring | Mid-range lets, serviced accommodation | Medium | Comfort layer density decides whether it lasts |
| Pocket sprung | Guest houses, holiday lets, review-sensitive settings | Longest | Highest upfront cost; overkill for short-stay student rooms |
| All-foam | Awkward sizes, bunk rooms, caravans | Varies with density | Cheap low-density foam dips quickly under nightly use |
Browse Crib 5 contract mattresses
Matching the mattress to the property
Student accommodation
High turnover, single occupancy, and tenants who did not choose the bed. Prioritise compliance, a protector on every mattress, and a price that makes a three to five year replacement cycle painless rather than chasing longevity you will not realise.
HMOs and shared houses
Similar to student lets but with longer tenancies. Check your licence conditions: many HMO licences and insurers specify contract-grade furnishings. This is the category where getting the fire rating wrong carries real consequences.
Holiday lets and guest houses
Here the mattress is part of the product. Guests review beds, and a poor night is disproportionately likely to appear in writing. Pocket sprung is usually worth the upgrade, and the cost spreads across many bookings.
Single-family rentals
Often domestic rules apply, so you have more freedom. Even so, contract-grade construction tends to survive tenancies better than a supermarket mattress at a similar price.
Buying in quantity
Ordering several mattresses at once is where UK manufacturers become genuinely cheaper than retail chains, because you are not paying a showroom margin. Both Starlight Beds and The Sleep People list dedicated contract and landlord ranges, and both manufacture in West Yorkshire — in fact Starlight Beds, The Foam People and The Sleep People are all part of the same group, so treat them as one supplier with several ranges rather than three independent quotes.
For non-standard bed frames, bunks or box rooms, custom-cut foam mattresses avoid the temptation to force a standard size into a space that does not take one.
A sensible specification checklist
- Confirm the BS 7177 source level in writing before ordering.
- Fit a waterproof protector to every bed from day one.
- Choose reinforced edges where beds double as seating.
- Standardise sizes across a portfolio so mattresses and bedding are interchangeable.
- Keep a documented replacement cycle — useful for both budgeting and inspections.
- Ask about rolled and boxed delivery if access involves stairs or narrow landings.
Frequently asked questions
Do all landlords need Crib 5 mattresses?
No. Requirements depend on the property type, licensing and your insurer. Licensed HMOs, student halls and hospitality settings commonly require it; an ordinary single-family let often does not. Confirm your own position rather than relying on a general answer.
Is a contract mattress less comfortable?
Not inherently. Crib 5 describes fire performance, not feel. Comfort is decided by the construction above the support layer, and contract ranges span firm basics through to pocket sprung.
How often should rental mattresses be replaced?
There is no legal interval. In practice, high-turnover lets tend to replace on a three to five year cycle, and staining or visible dipping usually forces the decision before wear does.
Can I use a domestic mattress if I add a protector?
A protector does not change a mattress’s fire classification. If Crib 5 is required for your property, the mattress itself must meet it.
The short version
Check what fire standard your property actually requires before you compare anything else, because it narrows the field immediately. Protect every mattress from day one, spend more where guests write reviews and less where turnover is high, and buy direct from a manufacturer if you are ordering more than two or three at a time.
