We have scored two DFI beds. We have not scored a King Koil.
Sanctuary 4.2/5 and Gelflex 3000 4.6/5 are the published review scores. King Koil sits on our orthopaedic, back pain, side sleeper and seniors roundups with catalog specs — not a 1–5 sleep-test overall. Until we sleep on one, there is no King Koil star on this page.
The short verdict
If someone asks "just tell me which Irish spring bed to buy," the split is not firmness — it is how you like to shop. DFI is the factory. You pick a Sanctuary or a Gelflex on dfibeds.com, they build it in Tyrone, and their own vans bring it. King Koil is the showroom brand. You lie on a Spinal Guard or a 2000-pocket Supreme, you leave with ICA-backed hardware, and you pay furniture-shop money. Same island, same pocket-spring idea, different job.
Choose DFI if…
- You will order a traditional pocket spring unseen. Sanctuary Double is €329 on the review we published.
- You want the higher-spec Irish hybrid. Gelflex 3000 scored 4.6 overall, 4.6 cooling, 4.7 comfort — 3000 springs and G5 gel.
- Free own-fleet delivery matters. DFI quotes a typical 7-day make-and-deliver from County Tyrone, ROI and NI.
- You can live without a trial. DFI says it does not operate one. The Sanctuary is turnable; the Gelflex is not.
Choose King Koil if…
- You want to lie on it first. Caseys Cork, Limerick and Dublin, or Meubles / Michael Murphy / Dalzells.
- ICA-endorsed spinal support is the reason you are shopping. Chiro-Span and Tri-Chiro live on the King Koil side of our orthopaedic guide.
- You want a longer stated warranty on a named SKU. Catalog: 10 years on Spinal Guard and Support Supreme 2000; 15 years on Extended Life Plus and Intense.
- Hotel-feel or natural fillings. Concierge's Choice and Craftsman's Choice (wool, silk, cashmere) are King Koil collections, not DFI.
Health & medical disclaimer
ICA endorsement and "best for a bad back" marketing are not clinical findings. No mattress treats or cures pain. If you live with ongoing spinal, joint, or muscular pain, speak with your GP or a chartered physiotherapist before buying on the back of a comparison. See our back pain and orthopaedic guides.
Brand comparison
Factory, how you buy, and the numbers we already have on file. Where a live 2026 listing has moved on from a review, the cell says so.
| Factor | DFI Beds | King Koil | Notes |
|---|---|---|---|
| Factory | County Tyrone — factory to door | Kilcullen, Co. Kildare — handmade since 1982 | Both are Irish-made pocket-spring manufacturers. King Koil also still sells open-coil spinal models. |
| How you buy | Direct on dfibeds.com | Retailers: Caseys, Meubles, Michael Murphy, Dalzells, EZ Living, independents | DFI is the online factory. King Koil is the showroom brand. Caseys stocks King Koil exclusives made in Kildare. |
| Lie-down first | No public showroom network in our store guides | Yes — Caseys Cork, Limerick (42,000 sq ft) and Dublin (Arnotts), plus independents | This is the whole King Koil argument if you will not buy a spring bed unseen. |
| Sleep trial | None — DFI says so on the product pages | No home trial in our catalog — retailer returns only | Neither is Emma. You are choosing Irish springs, not a 200-night box. |
| Warranty (what we have on file) | Sanctuary review: 1 year. Live Sanctuary listing: 3 years. Gelflex review: 10 years. | Catalog: 10 years on Spinal Guard and Support Supreme 2000; 15 years on Extended Life Plus / Intense | Do not treat either brand as one number. Read the SKU. Collection cards in our Irish-made picks also list 5 years on some King Koil ranges. |
| Spinal credentials | Sanctuary marketed as DFI's best mattress for a bad back | ICA endorsement + Chiro-Span / Tri-Chiro on the spinal models | Orthopaedic is unregulated in Ireland. ICA is the King Koil differentiator we actually cite on the orthopaedic roundup. |
| Delivery | Free nationwide, own fleet, typical 7-day make-and-deliver | Retailer delivery — cost and speed depend on the shop | DFI's own vans are a real advantage if you are outside Dublin. |
| Double price band we can cite | Sanctuary €329 · Gelflex €539 (review-page figures) | Caseys 4'6" from ~€1,099 (Merrion); 5ft Classic sale €1,099; higher-count models €1,399–€1,599 | Not like-for-like SKUs. DFI is factory-direct. Caseys King Koil is showroom pocket-spring, often with exclusives. |
| Published 1–5 sleep-test overall | Sanctuary 4.2/5 · Gelflex 4.6/5 | None published | There is no published King Koil 1–5 overall to put here. |
Closest mattress matches
Brand vs brand only gets you so far. These are the pairs that actually sit in the same shopping tab.
Traditional 1200-ish pocket spring
| Factor | DFI Sanctuary (review) | King Koil Spinal Support 1200 |
|---|---|---|
| Construction | 1200 ActiMax nested pocket springs, hand-tufted, turnable | 1200 pocket springs, centre-third Chirospan, euro-top, ICA approved |
| Height / firmness | ~25 cm · Medium 5–6/10 (review) | 29 cm · Medium-firm (catalog) |
| 1–5 overall | 4.2 — published review | Not published |
| Double price we can cite | €329 | €€€ catalog band — retailer ticket, not factory-direct |
| Warranty on file | 1 year on the review; 3 years on the live Sanctuary listing | Retailer / model — Spinal Guard sibling is listed at 10 years |
Live dfibeds.com Sanctuary is now a 1000-pocket listing. Scores stay with the 1200 we reviewed.
Higher spring count / hybrid
| Factor | DFI Gelflex 3000 (review) | King Koil Support Supreme 2000 / Caseys 3000s |
|---|---|---|
| Construction | 3000 pocket (ActiMax + ZeroG micro) + G5 Comfort Gel, ~30 cm, one-sided | 2000 nested pocket + Tri-Chiro, ICA. Caseys also lists exclusive 1800- and 3000-pocket King Koils made in Kildare |
| 1–5 overall | 4.6 — published review | Not published |
| Cooling | 4.6/5 on the Gelflex review | Catalog cooling 5/10 on Support Supreme 2000 — different scale, not a sleep-test score |
| Price we can cite | Double €539 · King €639 | Caseys 5ft Classic sale ~€1,099; Natural Empress 3300 5ft listed €1,549; Ultimate Support 5ft €1,599 (Sept 2026 tickets) |
| Warranty on file | 10 years on the Gelflex review | 10 years on Support Supreme 2000 in the catalog; Caseys Gel 3000 copy also states 10 years |
The DFI scores we actually published
Copied from the review pages. Full method: how we test. King Koil is omitted from the star rows on purpose.
Very good — traditional Irish pocket spring at a factory-direct price
Excellent — DFI's flagship, sales-team favourite in their own copy
Traditional fillings, medium 5–6/10
G5 gel surface — highest comfort score of the two DFI beds
4.5 — the Sanctuary's strongest category
4.5 — 3000 springs, same support number, different feel
4.0 — pocket springs, not foam-in-a-box
4.4 — dual spring system
4.4 — edge-to-edge, turnable
4.2 — good, a touch softer than the pure spring Sanctuary
4.6 — highest value score of either DFI
4.3 — still strong at €539 Double with the 10-year review warranty
Cooling is scored on the Gelflex review only (4.6/5). The Sanctuary review does not publish a cooling number — we are not filling the gap.
Honest trade-offs
How you actually buy them
Winner: depends whether you will buy a spring bed unseen.
DFI is dfibeds.com, phone 01 513 4760 (ROI) or 028 3839 9669 (NI), humm finance, own delivery fleet. Our online stores guide puts them in the Irish-made slot. There is no 200-night parachute.
King Koil is a retailer brand. Caseys Raheen is the 42,000 sq ft lie-down; Cork city centre and Arnotts Dublin are the other Caseys doors. Meubles and Michael Murphy are the catalog CTAs for Spinal Guard Luxury and Support Supreme 2000. Dalzells of Markethill ships King Koil toward Belfast. You pay shop money for the right to bounce on it first.
Warranty and trial
Neither brand is a sleep-trial brand. King Koil's named SKUs carry the longer warranties in our catalog.
Sanctuary review: 1 year. Current Sanctuary page: 3-year manufacturer warranty, defects only, original purchaser, no trial. Gelflex review: 10 years — still the number we use for that mattress. Some current DFI pages also print generic 5-year warranty copy, so read the SKU you are adding to the cart.
King Koil catalog: 10 years on Spinal Guard and Support Supreme 2000; 15 years on Extended Life Plus and Extended Life Intense. Irish-made collection cards in our picks still list 5 years on Lifestyle / Concierge's / Craftsman's ranges — another reason not to quote one King Koil warranty as if it were the factory.
Spinal support vs value springs
King Koil wins the credential. DFI wins the published support-for-the-money.
ICA plus Chiro-Span steel bands in the lumbar zone is why King Koil is on the orthopaedic page next to The Spinery and Respa. Spinal Guard itself is open coil, not pocket — do not lump every King Koil into this comparison's pocket-spring brief. Support Supreme 2000 is the 2000-pocket, Tri-Chiro, ICA model.
DFI Sanctuary support 4.5/5 at €329 Double is the value argument. Gelflex matches that 4.5 support score with a 4.6 cooling score the Sanctuary review never published. If your back is the whole decision and you want to lie on the bed, King Koil. If your back is the decision and €329 is the budget, Sanctuary — knowing the live listing has moved to 1000 pockets.
What you are paying for
Winner: DFI on ticket price. King Koil on showroom and finish range.
A Gelflex King at €639 on our review is still hundreds below a Caseys 5ft King Koil Classic on sale at €1,099. That gap is retail, exclusives, ICA hardware, and the cost of keeping floor models in Cork, Limerick and Dublin — not proof that one coil is three times better. Craftsman's Choice (natural wool, silk, cashmere) has no DFI equivalent in the reviews we have published.
If you would rather have a trial
Stop. These two factories are the wrong aisle. Emma Original Pro vs Original is the 200-night hybrid decision. IKEA's 365-day exchange is the longest policy we cite. DFI vs King Koil is for people who already want an Irish-made spring bed.
What each factory actually sells
DFI — the two we have reviewed
- Sanctuary — turnable, hand-tufted pocket spring. Review unit: 1200 springs, ~25 cm, Double €329. Live listing: 1000 pocket, ~11 inches, 3-year warranty.
- Gelflex 3000 — 12-inch hybrid, 3000 springs, G5 gel, one-sided. Double €539, Zip & Link Super King €829 Super King Zip & Link. Highest DFI score we have (4.6).
- Catalog also lists a Zip & Link pair for couples who want different firmness, and a Hush kids mattress. Those are not scored reviews.
King Koil — three collections on kingkoil.ie
- Lifestyle Choice — firmer, spinal and Extended Life lines (Spinal Guard, Spinal Support Pocket 1200, Extended Life 1200/1400/1600).
- Concierge's Choice — hotel-inspired quilted tops. Our Irish-made picks describe this as the hotel-luxury band.
- Craftsman's Choice — natural fillings (wool, silk, cashmere in our picks).
- Caseys exclusives — Classic 1800-pocket, Gel 3000 PlushTop, Natural Empress 3300, Ultimate Support, Merrion. Made in Kildare for that shop, not the same SKU as Meubles' Spinal Guard.
Price bands we can actually cite
DFI figures are from the published reviews. King Koil Caseys figures are listed sale tickets in September 2026. Live prices move.
| Size / ticket | DFI Sanctuary (review) | DFI Gelflex 3000 (review) | King Koil at Caseys (listed) |
|---|---|---|---|
| Single | €239 | €359 | Merrion 3ft €799 · Empress 3300 3ft €1,029 |
| Double / 4'6" | €329 | €539 | Merrion €1,099 · Ultimate Support €1,499 · Empress 3300 €1,399 |
| King / 5ft | €379 | €639 | Classic sale €1,099 · Empress 3300 €1,549 · Ultimate Support €1,599 |
| Super King / 6ft | €499 | €749 | Classic sale €1,399 · Empress 3300 €1,949 · Ultimate Support €1,999 |
Caseys King Koil range: caseys.ie/brands/king-koil. Brand collections: kingkoil.ie.
DFI vs King Koil — common questions
Bottom line
DFI is the Irish spring bed you order. King Koil is the Irish spring bed you lie on first. If the budget is a Double under €550 and you accept no trial, the published scores point at DFI — Sanctuary 4.2 for the traditional turnable, Gelflex 4.6 if you want gel and 3000 springs. If ICA hardware and a Caseys (or Meubles) lie-down are the point, King Koil — and we still do not have a sleep-test overall to hang a star on.
Last updated September 2026. Full DFI tests: Sanctuary and Gelflex 3000. King Koil models in the orthopaedic guide.
Keep reading
Explore more sleep content to help you make the best choices.
DFI Sanctuary 1200 Review
4.2/5 — Irish-made 1200 pocket sprung, the value DFI we scored
Read moreDFI Gelflex 3000 Review
4.6/5 — 3000-spring hybrid with G5 gel, DFI's flagship
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Where King Koil Spinal Guard and Support Supreme 2000 sit vs Spinery and Respa
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DFI as the Irish-made factory-direct option vs Emma, Dreams, IKEA
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Caseys' 42,000 sq ft Raheen showroom — the King Koil lie-down
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If you would rather have a 200-night trial than an Irish spring factory
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