In stock
White Metal Headboard
from £96.94
Free mainland delivery

Out of stock in this size
See similar orthopaedic mattresses in stock nowFree UK mainland delivery · made to order, 2–3 weeks from order to delivery
30-day returns on unused items in original packaging (mattresses must be unopened). Returns policy
Questions before you order? Message us or email online@onlineand.direct.
| Size | Mattress (W × L) |
|---|---|
| Small Single (2'6") | 75 × 190cm |
| Single (3'0") | 90 × 190cm |
| Small Double (4'0") | 120 × 190cm |
| Double (4'6") | 135 × 190cm |
| King (5'0") | 150 × 200cm |
| Super King (6'0") | 180 × 200cm |
The Apol Semi-Ortho sits between standard and full orthopaedic specification — firmer than a medium mattress but not as rigid as a full orthopaedic. Made in Britain to order. The right specification for sleepers who find standard mattresses insufficiently supportive but find full orthopaedic mattresses too hard — the middle ground that suits a large proportion of back and combination sleepers.
Free delivery to the UK mainland. This item is made to order: please allow 2–3 weeks from order to delivery (1–2 weeks to build, then carriage).
A specialist carrier contacts you to agree a delivery day and delivers to your entrance hall.
We do not currently deliver to Northern Ireland, the Scottish Highlands and islands, the Isle of Man, the Isle of Wight, the Channel Islands or the Isles of Scilly. Check your postcode above, or see delivery areas and exclusions.
30-day returns on unused items in their original packaging (mattresses must be unopened). Contact us before returning any item. Full returns policy
Many people find that a standard medium mattress doesn't provide quite enough resistance for their back, but a full orthopaedic mattress feels uncomfortably hard. Semi-orthopaedic specification is engineered for this middle group — firm enough to prevent the lower back sinking into misalignment during sleep, but with enough give to be comfortable for side sleepers and those without acute back conditions. Often the first step up when a GP or physiotherapist advises a firmer sleeping surface.
How long does delivery take? Made-to-order — please allow 2–3 weeks from order to delivery. Free UK mainland delivery direct to your door.
What firmness is the Semi-Ortho? Medium-firm — firmer than a standard medium mattress, softer than a full orthopaedic specification.
What sizes are available? Single (3'0"), Small Double (4'0"), Double (4'6"), King (5'0"), and Super King (6'0").
How do I care for this mattress? Rotate head-to-toe monthly. Use a mattress protector. Do not fold or bend when handling.
Should I choose Semi-Ortho or full Orthopaedic? If you wake with back pain on a medium mattress, start with the Semi-Ortho — it provides meaningful additional support without the full firmness of an orthopaedic. Only step up to full orthopaedic if the semi-ortho still feels insufficiently firm after a settling-in period.
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