Olive Foam
Semi-Orthopaedic Mattress

Last updated: 26 June 2026

Executive Summary

The Olive Foam Semi-Orthopaedic Mattress is a high-density foam mattress built to sit between everyday foam comfort and the firmer, more rigid feel of a full orthopaedic mattress. It is sold with a 5 Years Factory Warranty, eight standard Nigerian sizes from Single (3×6ft) to the rare Extra Large (7×7ft), and thickness options running from 6 inches up to 24 inches depending on size. Prices range from approximately ₦94,834 for the smallest configuration to roughly ₦812,590 for the largest, across 45 size-and-thickness combinations.

It is the best-selling collection at Olive Foam Awka Depot and the mattress most often recommended to families, guest-room buyers, hotels and guesthouses who want firmer-than-standard support without committing to the rigidity of Full Orthopaedic. This guide explains the features, sizes, thickness options, comfort profile, warranty, delivery and care of the mattress, compares it honestly against other Olive Foam collections and well-known national brands, and sets out exactly who benefits most — and who should consider a different mattress instead.

• Support profile: medium-firm to firm, described by Olive Foam as "balanced orthopaedic support" rather than a clinical classification.
• Warranty position: sits between Olive Foam/Olive Damask (4 years) and Full Orthopaedic (10 years).
• Most popular configuration: Double (4.5×6ft) at 8 inches, though Queen and King sizes are common in hotels and premium bedrooms.
• Local advantage: direct factory pricing, in-depot inspection before purchase, free delivery within Awka and fast delivery across Anambra State.

Quick Product Overview

Before the detail, here is the mattress at a glance, drawn directly from what Olive Foam Awka Depot currently publishes and sells. If you only read one section before WhatsApping us, this is the one — everything else on this page expands on a row in this table.

Key Features

• High-density foam core — firmer and more supportive than standard-density foam, intended to resist excessive sinking under body weight.
• 5 Years Factory Warranty — the mid-tier warranty in the Olive Foam range, ahead of Olive Foam and Olive Damask at 4 years, and behind Full Orthopaedic at 10 years.
• Eight size options — from Single (3×6ft) right up to the rare Extra Large (7×7ft), suiting everything from a single guest bedroom to a presidential-style suite.
• Exceptional thickness range — from 6 inches for everyday adult use up to 24 inches for institutional and VIP applications, well beyond what most competing semi-orthopaedic mattresses in Nigeria publish.
• 45 size-and-thickness combinations — giving buyers an unusually precise match to their bed frame and budget rather than a handful of fixed options.
• Free delivery within Awka — same-day or next-day in most cases, with paid delivery across the rest of Anambra State and nationwide delivery available on request.
• Direct depot inspection — buyers in and around Awka can see, press and compare the mattress in person at the Olive Foam Awka Depot showroom before paying.
• Bulk and institutional supply — available for hotels, hostels, schools and other institutions ordering multiple units, with quotes provided on WhatsApp.

For a deeper explanation of what "high density" and "thickness" actually change about how a mattress feels and lasts, see the foam mattress thickness guide for Nigeria.

Best-Seller

Semi-Orthopaedic Mattress

High-density foam, 45 size-and-thickness combinations, and a 5-year factory warranty.

From ₦94,834View Sizes & Order →

Available Sizes

The Semi-Orthopaedic collection is sold in eight standard Nigerian sizes. Smaller sizes are limited to thinner builds, while the most popular widths — Double, King and Extra Wide — are available across the full thickness range. Measure the internal sleeping surface of your bed frame, not its outer dimensions, before ordering; the Nigerian mattress size guide explains how.

Note that 7×6ft and 7×7ft sizes require a custom bed frame, since standard Nigerian frames are built around the narrower widths. If you are buying for a hotel or institution with non-standard frames, WhatsApp Olive Foam Awka Depot with your frame measurements before ordering.

Available Thickness Options

Thickness affects three things: how much the foam compresses under body weight, how evenly it spreads that weight, and how long it keeps its shape. Within the Semi-Orthopaedic collection, thickness runs from 6 inches up to 24 inches, though not every size offers every thickness — the table below summarises what each band is generally best suited to.

Comfort and Firmness

Olive Foam describes the Semi-Orthopaedic mattress as offering "balanced orthopaedic support," which in practice means a medium-firm to firm surface with a little more cushioning than the Full Orthopaedic collection. It is not a soft or plush mattress, and buyers who specifically want deep sink and cloud-like softness will generally be happier with a different category of mattress altogether — foam-only mattresses across the Nigerian market, including Olive Foam's own range, do not typically replicate the very soft hotel-style pillow-top feel found on some imported spring mattresses.

Compared with the rest of the Olive Foam range, Semi-Orthopaedic sits clearly above the standard Olive Foam and Olive Damask collections in firmness and density, and just below Full Orthopaedic, which is built specifically for maximum rigidity. Olive Foam does not publish a numeric firmness or ILD rating for this model, so the most useful comparison is against its own sibling collections and against how it is positioned by competing Nigerian brands, covered in the comparison section below.

It is worth separating two ideas that buyers often blur together: density and firmness. Density describes how much foam material is packed into the core, which mainly affects durability and how slowly the mattress wears down. Firmness describes how the surface feels under body weight. A high-density foam, like the core used in Semi-Orthopaedic, is not automatically the firmest-feeling option — it is the longer-lasting one. Full Orthopaedic feels firmer mainly because of how the foam is formulated and layered, not purely because it is denser. Understanding this distinction helps explain why two mattresses can both be described as "high-density" while feeling noticeably different underneath you.

Orthopaedic Support

"Semi-orthopaedic" is a widely used commercial category in the Nigerian mattress market, describing a mattress that aims to reduce excessive sinking while still allowing some contouring — firmer than a standard comfort mattress but not as rigid as a full orthopaedic model. It is a useful shorthand for shoppers, but it is not a regulated medical term, and Olive Foam does not publish a clinical study, density figure or clinician endorsement specific to this exact model.

For buyers with mild, preference-driven discomfort or general stiffness, the balanced firm support of this mattress is often a sensible upgrade from a softer or older mattress. For diagnosed back conditions, sciatica or other clinician-managed spinal issues, we recommend treating mattress firmness as one part of a wider conversation with a healthcare professional, and considering Olive Foam Full Orthopaedic if maximum firmness is what has been advised. Our guide to the best mattress for back pain in Nigeria goes into this in more depth, and a dedicated comparison of orthopaedic options is available in our best orthopaedic mattress in Nigeria guide.

How Olive Foam Semi-Orthopaedic Compares

No single mattress is the right choice for everyone, so it helps to see the Semi-Orthopaedic mattress placed directly alongside its closest Olive Foam siblings and two well-known national alternatives. Where information about a competitor brand could not be independently verified, that is stated plainly rather than guessed at.

*Based on publicly available information from third-party retailer listings. These figures were not independently verified with Vitafoam or Mouka directly and should be treated as a general guide rather than an official price or warranty.

Semi-Orthopaedic vs Full Orthopaedic

This is the comparison we are asked about most often in our own depot. Full Orthopaedic uses an ultra-high-density foam core, carries a 10 Years Factory Warranty, and is noticeably firmer when you press your hand into it. Semi-Orthopaedic uses a high-density core with a 5 Years Factory Warranty and slightly more give, which is part of why it is the more popular hotel and household choice. If you have chronic back pain or want the longest possible warranty, Full Orthopaedic is generally the better fit; if you want strong support with a touch more comfort, Semi-Orthopaedic usually wins. Our dedicated Full Orthopaedic vs Semi-Orthopaedic comparison covers this in full.

Semi-Orthopaedic vs Olive Damask

Olive Damask is built around a standard-density core finished in a premium quilted damask fabric, and is positioned as a finish-led rather than support-led mattress, with a 4 Years Factory Warranty. Semi-Orthopaedic is the firmer, more support-focused option, with a higher-density core and a longer warranty. Buyers who care most about the surface fabric and a softer everyday feel often choose Olive Damask; buyers who want firmer orthopaedic-style support choose Semi-Orthopaedic.

Semi-Orthopaedic vs Vitafoam Galaxy Classic

Vitafoam is one of Nigeria's longest-established mattress brands, and its Galaxy Classic is positioned in public listings as a sandwich-construction mattress offering maximum support with some soft feel — a similar market position to Semi-Orthopaedic. Olive Foam's advantage is largely practical: a clearer published warranty, a wider published thickness range, and direct depot access in Awka for inspection and after-sales support. Vitafoam's advantage is broader national name recognition. A full breakdown of the two brands is in our Olive Foam vs Vitafoam comparison.

Semi-Orthopaedic vs Mouka Wellbeing Regina

Mouka's Wellbeing Regina is marketed as semi-orthopaedic with a comfortable but firmer back-support feel, and Mouka's wider Wellbeing range leans heavily on physiotherapy-association endorsements in its national marketing. Olive Foam does not publish an equivalent clinical endorsement for Semi-Orthopaedic, so buyers who specifically want that kind of third-party clinical association may lean towards Mouka. Buyers prioritising local availability, transparent published pricing across every size and thickness, and faster local after-sales support in Anambra State tend to find Olive Foam the more practical choice. A direct comparison of Olive Foam against Mouka is in progress; see our Olive Foam vs Mouka comparison once published, and our wider best mattress brands in Nigeria guide for further national-brand context, including Marta Foam — see our Olive Foam vs Marta Foam comparison.

Who Should Buy This Mattress?

• Buyers who want firmer support than standard foam but find full orthopaedic mattresses too rigid.
• Families furnishing a master bedroom, since Olive Foam directly markets this collection for family use.
• Hotel, guesthouse and short-let property owners needing a durable, consistent mattress across multiple rooms.
• Back and stomach sleepers who generally do better on a flatter, firmer surface.
• Institutional buyers — schools, hostels and clinics — wanting a mid-tier support mattress at scale, subject to confirming exact procurement requirements with us directly.
• Buyers who want to inspect and press the mattress in person before paying, since the Awka depot stocks the full range for viewing.

Who May Prefer Another Mattress?

• Sleepers who want a soft, deep-sink feel — Semi-Orthopaedic is a firm-leaning mattress, and no foam-only model in this range replicates a plush, pillow-top feel.
• Buyers who need clinician-endorsed orthopaedic specifications — no independently verified clinical endorsement exists for this exact model, so anyone needing that should speak to a healthcare professional first and consider Full Orthopaedic alongside that advice.
• Very lightweight side sleepers — those sensitive to shoulder and hip pressure may prefer a softer Olive Damask or a thicker Semi-Orthopaedic build to add some extra give.
• Buyers who need an exact published weight-capacity figure — Olive Foam does not publish a maximum-weight rating for this model; the body-weight guidance below is general, not a tested limit.
• Pure budget buyers, especially students — ENO Foam or Elite Foam will stretch a tight budget further; see our student mattress guide.

Suitable Sleeping Positions

The following is general guidance based on how medium-firm to firm foam mattresses typically perform for each sleeping position, rather than model-specific laboratory or pressure-mapping data, which Olive Foam has not published for this exact mattress. Personal preference still matters, and an in-depot test is the most reliable final check.

Suitable Body Weight Ranges

Thickness, more than firmness alone, is what should change with body weight. The table below mirrors the general guidance Olive Foam Awka Depot gives every customer, also published in full in the foam mattress thickness guide for Nigeria.

Best Uses

Because the Semi-Orthopaedic mattress is sold across such a wide range of sizes and thicknesses, it ends up serving several quite different buyer types well. The sections below cover the four most common: hotels and hospitality, families, guest rooms, and students. In each case, the same underlying qualities — durable high-density foam, a firm but not rigid feel, and a 5-year warranty — show up as the deciding factor, even though the specific size and thickness recommendation changes depending on who is sleeping on it and how often.

Hotels and Hospitality

Semi-Orthopaedic, at 8 inches, is the most widely used hotel mattress collection sold by Olive Foam Awka Depot, because high-density foam withstands frequent use across many guests without sagging early, and 8 inches is the hospitality industry standard size in Nigeria. For a 20-room hotel furnished at Queen size (5×6ft) and 8 inches, prices start from approximately ₦177,134 per mattress, with bulk discounts available for orders of ten units or more. Premium and boutique properties more often step up to Full Orthopaedic at 10 inches and above for a noticeably firmer guest experience. Our full hotel mattress supply guide covers procurement in more depth.

Families

Olive Foam directly markets Semi-Orthopaedic for family use, and it is the size and support level we recommend most often to households furnishing a master bedroom. Double (4.5×6ft) and Queen (5×6ft) at 8 inches are the most common family configurations, giving two adults comfortable space with firm, durable support that holds up to years of daily use. Households across Awka, Onitsha and Nnewi frequently choose this collection specifically because it balances comfort and support without the cost step-up to Full Orthopaedic.

Guest Rooms

Guest rooms see infrequent but unpredictable use — sometimes empty for weeks, then used by a visiting relative who may be heavier, lighter, or simply unfamiliar with the bed. A firm, durable Semi-Orthopaedic mattress at Standard (4×6ft) or Double (4.5×6ft) and 8 inches tends to suit the widest range of occasional guests without needing to be matched precisely to one person's preferences, which is exactly why it is also the hospitality industry's default choice.

Students

For pure budget hostel furnishing, ENO Foam and Elite Foam remain our primary recommendations — see our best student foam mattress in Awka guide for exact pricing. Semi-Orthopaedic becomes the better choice for students in a few specific situations: postgraduate students or lecturers furnishing a private off-campus apartment, students with existing back or posture complaints who want firmer support, or parents who would rather invest once in a mattress likely to last the full length of a degree programme. At Single (3×6ft) and 6 to 8 inches, it costs more than ENO or Elite Foam but carries a longer factory warranty and a firmer, more supportive feel.

Why Many Families in Anambra Choose Semi-Orthopaedic Mattresses

Across Awka, Onitsha, Nnewi, Ekwulobia, Aguata, Agulu, Nkpor and Obosi, Semi-Orthopaedic has become the default recommendation for households that want more than entry-level comfort without paying for a full orthopaedic upgrade they may not need. A few reasons come up repeatedly in conversations with our customers across Anambra State:

• Balanced support — firm enough to feel like a genuine upgrade from a sagging old mattress, without the rigidity that some buyers find too hard.
• Everyday comfort — suited to daily family use rather than a single sleeping style, which matters when a bed is shared by a couple with different preferences.
• Durability — high-density foam and a 5-year warranty give families confidence the mattress will hold up to years of regular use.
• Guest-room suitability — the same qualities that make it a strong family choice also make it the easiest mattress to recommend for a spare room used by different visitors over time.
• Family use — it is the collection Olive Foam names directly when describing who the mattress is built for.
• Local availability — every size and thickness combination is stocked at the Awka depot, with free delivery in Awka and fast, paid delivery across the rest of Anambra State, so families do not have to wait weeks for a specific configuration.

Warranty Information

The Olive Foam Semi-Orthopaedic Mattress carries a 5 Years Factory Warranty, positioned between the 4-year warranty on Olive Foam and Olive Damask and the 10-year warranty on Full Orthopaedic. The warranty covers verified manufacturing defects in the foam core. If a defect is confirmed, Olive Foam Awka Depot arranges a replacement or repair at no extra cost to the customer.

To make a warranty claim, contact Olive Foam Awka Depot on WhatsApp at 08108310088 with clear photos of the defect. Claims are assessed within 3 working days, and once a claim is approved, it is processed — meaning replacement or repair arranged — within 7 working days. This warranty process is separate from the standard exchange policy: exchanges for a different size, thickness or collection of equal or greater value are accepted within 48 hours of delivery, while the 5-year warranty specifically covers manufacturing defects that may appear later. Full terms are published on our refund and exchange policy page.

Delivery Information

Olive Foam Awka Depot offers free delivery within Awka, typically same-day or next-day depending on order timing and stock availability. Delivery across the rest of Anambra State — including Onitsha, Nnewi, Ekwulobia, Aguata, Agulu, Nkpor and Obosi — carries a delivery charge that varies by distance; contact us on WhatsApp for an exact quote to your address. Nationwide delivery to other Nigerian states can also be arranged via transport, with timelines and cost confirmed at the point of order.

For hotels, schools and other bulk or institutional orders, deliveries are scheduled with a dedicated delivery team, and on-site installation can be arranged where needed. The Olive Foam Awka Depot showroom is located at Romans 9:15 Plaza Arroma, 3 Ifite Road, off Arroma Junction, beside Femas Filling Station, Awka, Anambra State, open Monday to Friday from 8am to 6pm and Saturday from 8am to 5pm. Full delivery terms and frequently asked questions are on our delivery and FAQ page.

Care and Maintenance

With proper care, a Semi-Orthopaedic mattress can be expected to last around 8 to 12 years, reflecting the high-density foam core behind its 5-year factory warranty. A few simple habits make the biggest difference to how long it actually lasts in practice:

• Use a mattress protector. Moisture is the single biggest cause of premature foam breakdown in Nigeria's humid climate, and a waterproof protector is the cheapest way to prevent it.
• Rotate every 3 months. Turning the mattress 180 degrees every few months spreads wear evenly instead of concentrating it in one sleeping spot.
• Never fold or bend it. Folding damages the internal foam structure permanently — always carry it flat or rolled when moving it.
• Allow ventilation. Occasionally airing the mattress helps any trapped moisture escape, which matters most during the rainy season.
• Use a solid, properly fitted bed frame. A weak or sagging frame stresses the foam unevenly and shortens its working life.
• Avoid repeated jumping or impact. This applies especially to children's use, since repeated impact breaks down foam faster than ordinary sleeping use.

More detail on expected lifespan across every Olive Foam collection, and the warning signs that a mattress needs replacing, is covered in our guide on how long a foam mattress should last in Nigeria.

Frequently Asked Questions

What is the Olive Foam Semi-Orthopaedic Mattress?

It is a high-density foam mattress from Olive Foam Awka Depot designed to sit between standard foam comfort and the firmer Full Orthopaedic collection. It carries a 5 Years Factory Warranty and is available in 8 sizes and thickness options from 6 to 24 inches.

Is Semi-Orthopaedic the same as Full Orthopaedic?

No. Semi-Orthopaedic uses high-density foam with a 5 Years Factory Warranty and a medium-firm to firm feel, while Full Orthopaedic uses ultra-high-density foam with a 10 Years Factory Warranty and a firmer feel intended for maximum support.

What sizes are available?

Eight sizes are available, from Single (3×6ft) through to the rare Extra Large (7×7ft), covering 45 size-and-thickness combinations in total. See the full breakdown above in Available Sizes.

What thickness should I choose?

8 inches is the most popular thickness and the hospitality industry standard, suiting adults up to roughly 90kg. Heavier sleepers, or anyone wanting maximum comfort, should consider 10 to 12 inches, while 14 to 24 inches are reserved for institutional or VIP use.

Is the Semi-Orthopaedic mattress good for back pain?

It can suit buyers with mild, preference-driven support needs because of its balanced, firm profile. For diagnosed back conditions or chronic pain, Full Orthopaedic or a clinician's advice is usually the safer route, since "semi-orthopaedic" is a comfort category rather than a medical classification.

How long does the warranty last and what does it cover?

The mattress carries a 5 Years Factory Warranty covering verified manufacturing defects. If a defect is confirmed, Olive Foam Awka Depot arranges a replacement or repair at no extra cost.

How do I make a warranty claim?

Contact us on WhatsApp at 08108310088 with photos of the defect. Claims are assessed within 3 working days, and approved claims are processed within 7 working days.

Can I exchange or return the mattress after delivery?

Exchanges for a different size, thickness or collection of equal or greater value are accepted within 48 hours of delivery. This is separate from the 5-year factory warranty, which covers manufacturing defects over a much longer period.

Is it suitable for hotels and guest rooms?

Yes. Semi-Orthopaedic at 8 inches is widely used across Nigerian hotels and guest rooms because high-density foam withstands frequent use without early sagging, and bulk pricing is available for multi-room orders.

Is it suitable for students?

It can suit students who want firmer support and longer durability than entry-level foam, but pure budget buyers are usually better served by ENO Foam or Elite Foam, which are priced specifically for hostel use.

How much does the Olive Foam Semi-Orthopaedic Mattress cost?

Prices range from about ₦94,834 for a Single (3×6ft) at 6 inches up to roughly ₦812,590 for the largest Extra Wide (7×6ft) at 24 inches, depending on size and thickness.

Does Olive Foam deliver outside Awka?

Yes. Delivery within Awka is free and usually same-day or next-day. Delivery across Anambra State, including Onitsha, Nnewi, Ekwulobia, Aguata, Agulu, Nkpor and Obosi, carries a charge based on location, and nationwide delivery can be arranged on request.

Related Products

If Semi-Orthopaedic is not quite the right fit, these other Olive Foam collections cover the rest of the range — from firmer orthopaedic support to softer, finish-led comfort and pure budget options.

Full Orthopaedic

10 Years Warranty · Maximum firm support

From ₦154,577

Olive Damask

4 Years Warranty · Premium quilted finish

From ₦35,720

Olive Foam

4 Years Warranty · Everyday comfort

From ₦28,989

Elite Foam

Value pick · Durable budget foam

From ₦27,108

Final Buying Advice

The Olive Foam Semi-Orthopaedic Mattress is not the right choice for everyone, and it is not meant to be. It is the right choice for buyers who want firmer, more durable support than a standard mattress, but who do not need — or do not want — the full rigidity of an orthopaedic-grade mattress. That covers most families furnishing a master bedroom, most hotels and guesthouses, most guest rooms, and students or institutions willing to spend a little more for longer-lasting support.

If you have diagnosed back pain, are a particularly heavy sleeper, or simply want the longest possible warranty and the firmest possible surface, Olive Foam Full Orthopaedic is usually the better recommendation. If you care more about a soft, fabric-led finish than firm support, Olive Damask is worth considering instead. And if budget is the deciding factor — particularly for student hostel rooms — ENO Foam or Elite Foam will do the job for less. Our wider mattress buying guide for Nigeria walks through this decision in more detail, and our mattress prices in Nigeria overview puts this collection's pricing in national context.

Whichever collection fits you best, the most reliable next step is to come and feel it for yourself. WhatsApp us your preferred size, thickness and budget, or visit the Olive Foam Awka Depot showroom directly — our team will give you a straightforward recommendation, not just a sales pitch.

Author