The Giselle Bedding Tiberius Cool Gel Foam 30 cm line is sold in Australian size names from Single through King. Every size shares the same thickness and medium-firm 6.5 labelling on the live pages, with cool gel infused memory foam over a pocket-spring core — what changes is the footprint in centimetres. Measure your frame first, then open the matching product URL below.
Collection hub: Furniture → Mattresses.
Direct size table (Tiberius Cool Gel Foam 30 cm)
Confirm on each product page before ordering:
| AU size name | Listed dimensions (L × W × D style as on page) | Product |
|---|---|---|
| Single | 91 × 190 × 30 cm | Cool Gel Foam 30cm Single |
| King Single | 107 × 203 × 30 cm | Cool Gel Foam 30cm King Single |
| Double | 137 × 190 × 30 cm | Cool Gel Foam 30cm Double |
| Queen | 153 × 203 × 30 cm | Cool Gel Foam 30cm Queen |
| King | 183 × 203 × 30 cm | Cool Gel Foam 30cm King |
Shared listing themes across this series: bamboo knitted fabric, cool gel infused memory foam, high-density foam, pocket springs with 6-turn coil system, hypoallergenic / dust-mite and mould-resistant claims, vacuum packaging with expand within 1 day. Firmness: 6.5 / medium firm.
How to pick a size without guessing
Single (91 × 190 × 30 cm)
Suits kids’ rooms, compact studios, and solo sleepers in small Australian bedrooms. Check bed-head width and wardrobe clearance — 30 cm height still needs deep sheets.
King Single (107 × 203 × 30 cm)
Longer than Double’s length in this series (203 cm vs Double’s 190 cm) and wider than Single. Popular for teens and taller solo sleepers who want extra length without a full Double width.
Double (137 × 190 × 30 cm)
Classic smaller couple or spacious solo size. Note 190 cm length on this Tiberius Double — shorter than Queen/King’s 203 cm. Tall sleepers should compare King Single or Queen length.
Queen (153 × 203 × 30 cm)
Default couple size in many Australian homes. Matches common Queen frames. Compare against the EasyDreamer Euro Top Queen if you want a different Euro-top construction at the same 30 cm depth.
King (183 × 203 × 30 cm)
Extra width for couples who sprawl or share with pets. Confirm bedroom wall clearances and that your King frame is Australian King (not Super King unless the listing says so).
Cool gel foam vs other Giselle thicknesses
Tiberius 30 cm is a hybrid stack (foam + pocket springs). If you want foam-only at a lower profile, compare the 15 cm cool-gel non-spring line (for example 15cm Queen). For a slim spring tight top, see 13 cm options such as the 13cm Tight Top Queen. Same brand name does not mean same construction — always read thickness and spring/foam notes.
Expand and first use
All Tiberius Cool Gel Foam 30 cm pages reviewed for this guide state the mattress will expand to normal shape within 1 day after unpacking. Unbox on the final base, ventilate the room, and wait before judging firmness. See the mattress-in-a-box unboxing guide (title 11) for odour and sheet tips.
Frame and sheet checklist
- Measure frame inner width and length in centimetres.
- Match the size name and cm on the Giselle page.
- Buy deep-pocket sheets for 30 cm depth.
- If using an adjustable base, confirm max mattress thickness on that listing.
- Allow the 1-day expand window before rotating.
Who the Tiberius size run suits
Households standardising on Giselle Cool Gel Foam 30 cm across rooms. Confirm cm on each size page — Single through King share thickness and medium-firm 6.5 language on live examples.
Soft catalogue note
If Single or Double Cool Gel endpoints 404 temporarily, keep the draft links and confirm centimetres on the live storefront — do not invent footprints.
Matching sheets across the house
If kids run king single and parents run queen, label linen cupboards by AU size name. Cool gel 30 cm thickness can stay consistent while footprints change.
Queen vs king on the same line
Tiberius queen and king share common 203 cm length on live examples; king adds width. Measure bedside tables before you upsize purely for Instagram width.
Last check before checkout
Open the linked Darrah Opens product page once more and confirm the exact size, expand note or feature list for the SKU in your cart.
Hot-summer cover habits
Cool gel foam still prefers breathable sheets and a clear under-base airflow path. Vacuum expand fully before you judge “too warm” on night one — half-lofted foam sleeps differently than a finished 30 cm stack.
FAQ
Is Giselle Cool Gel Foam 30 cm the same feel in every size?
Construction and firmness labelling match across the Tiberius 30 cm sizes; footprint changes. Individual feel still varies with body weight and base.
Queen or King for a couple in Australia?
Queen (153 × 203 cm) is the usual starting point; King (183 × 203 cm) adds width. Measure the room and frame first.
Why is Double shorter than Queen here?
This Tiberius Double lists 190 cm length vs 203 cm on Queen/King/King Single. Tall sleepers should check length carefully.
How long to expand?
Within 1 day per these Tiberius listings.
Where is the full mattress range?
Furniture → Mattresses on darrahopens.com.au.
What firmness is Tiberius Cool Gel 30 cm?
Live examples list medium firm 6.5 — confirm on the size you buy.
Is king single longer than single?
Yes on Tiberius examples — king single about 107 × 203 cm versus single about 91 × 190 cm where those pages are live.
Where should I browse related products?
Use the Darrah Opens product and collection links in this guide, and confirm live specifications on each product page before you buy.
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