- For Back Pain: Ortho mattresses provide enhanced support to care for your back and ensure healthy spinal alignment and reduce back pain
- Sizes: European, Small Single, Single, Small Double, Double, King Size, Super King
- Materials: Pressure-relieving memory foam, supportive pocket spring, and natural latex options
- Firmness: Soft-medium, medium, medium-firm, firm, extra firm
- Delivery: Free delivery
- Trial Period: 60-night in-home trial
- Warranty: Up to 20-year warranty
- Financing Options: Klarna
- Made in the UK: No
Mattress Online

Overview: What Mattress Online Brings to the Table
Mattress Online is a UK‑based online retailer that offers a broad selection of mattresses, beds, and sleep accessories — aiming to cover a wide range of sleep needs, budgets, and preferences. Their catalog includes pocket‑spring, memory foam, hybrid, orthopaedic, latex, gel, and eco‑friendly mattresses in sizes from single up to super‑king. Mattress Online advertises free next‑day delivery to many areas of the UK and often promotes comfort trials of 60 nights on many mattresses to let buyers test them at home before fully committing. This combination of variety, convenience, and sleep‑trial option positions Mattress Online as a viable alternative to traditional in‑store mattress shopping, especially for customers who prefer shopping from home or who may not have easy access to physical mattress retailers.
What to Consider Before Buying from Mattress Online
Because you can’t try most mattresses in person before purchase, choosing the right mattress type and firmness becomes perhaps the most important decision when buying from Mattress Online. Your body type, sleeping position, and any spinal or joint issues influence whether a memory‑foam, pocket‑sprung, firm, medium or soft mattress will suit you best. A mattress that feels perfect online in theory can feel too soft or too firm once unpacked. The wide variety offered is a strength, but also a potential source of confusion if you don’t carefully review mattress specifications (support system, depth, construction, pressure relief) before ordering.
Delivery and logistics are also an essential factor to weigh. Mattress Online offers free next‑day delivery in many cases, which for many buyers is a major convenience. But for larger mattresses — like king or super‑king sizes — unpacking, placement, and disposal of an old mattress (if you choose that service) require coordination and physical effort. While Mattress Online does offer an old‑mattress removal service in some cases, not all customers live in homes where disposal or placement is straightforward. Knowing exactly how the mattress will arrive — vacuum‑packed or rolled, expected delivery window, whether help is provided — can make a big difference in the delivery experience.
Another important consideration is mattress comfort trial and return policy. Mattress Online advertises a “comfort trial” (often 60 nights) on many mattresses, which helps mitigate the risk of buying unseen. However, because not all products may offer the trial or have return conditions, it’s vital to read the product’s terms carefully. A mattress may need an adjustment period (especially foam or hybrid styles that need time to decompress), and comfort preferences can be subjective — what feels supportive to one sleeper may feel too firm or soft to another. Ensuring you understand the return window, restocking policy, and whether return shipping or disposal is included will help avoid buyer’s remorse.
Common Questions
Does Mattress Online actually deliver quickly (next day)?
Yes — Mattress Online advertises free next‑day delivery to most areas of the UK, and many customers report that orders placed before the cutoff are delivered within 24 hours. For many buyers, this quick turnaround is a major benefit compared to traditional mattress shopping.
Is there a “sleep trial” if I don’t like the mattress?
Mattress Online offers a comfort trial (often 60 nights) on many but not all mattresses. If the mattress doesn’t meet your comfort or support expectations, you may be able to return or exchange it, depending on the brand and specific product’s policy. That said, because mattresses often need time to “bed in,” reviewers suggest giving yourself a few weeks before making a final judgment.
How do I choose the right mattress type and firmness when buying online?
Start by considering your sleeping position, body weight, whether you share the bed, and any back or joint issues. Lighter individuals or side sleepers often benefit from softer or medium‑firm memory‑foam or hybrid mattresses that relieve pressure. Heavier sleepers, back or stomach sleepers, or those needing more spinal support might prefer firmer pocket‑sprung or orthopaedic mattresses with deeper structure for durability and support. The specification filters on the site (mattress type, support system, firmness, and size) help narrow down options to match your needs.
Will the mattress arrive rolled up or ready to use?
Most mattresses from Mattress Online are delivered rolled or vacuum-packed (bed‑in‑a‑box style) for easier delivery and handling, especially for foam or hybrid models. Once unpacked, these usually require time — from several hours to up to 24 hours — to fully expand and reach intended comfort levels. For larger mattresses and spring-based models, delivery may involve double‑handling or assistance, which makes confirming delivery and placement options important before purchase.
Conclusion
Mattress Online presents a strong value proposition for shoppers seeking convenience, variety, and a broad price range when buying mattresses in the UK. The ability to browse a large selection from home, narrow down options by size, type, and firmness, and receive next‑day delivery makes it an especially attractive option for people replacing old mattresses quickly or those who dislike dealing with showroom visits. The 60‑night comfort trial on many mattresses reduces some of the risks of buying unseen, although potential buyers should still approach with care: knowing your sleep style, body type, and support needs before ordering will significantly increase the chances of a satisfying purchase.
That said, buying a mattress online always carries some uncertainty, especially when it comes to perceived comfort, delivery logistics, and return or exchange policies. To make the most of Mattress Online, take advantage of their filters, read mattress specs carefully, confirm delivery and optional removal services, and give the mattress time to settle in before judging its comfort. With the right preparation and expectations, Mattress Online remains a competitive and flexible option for mattress shopping.

