Basics Bonnell Spring Mattress - Double
About this mattress
The Basics Bonnell Spring Mattress in Double is a 138cm x 188cm double mattress. Support comes from a 15 cm Bonnell coil unit wound from 2.2 mm wire, five turns per coil, under a 700 gsm felt layer on each face, under sprayed fibre padding, which sets the feel at Medium, 5 out of 10 where 10 is softest. The mattress is 15cm thick with a tight top and weighs 20.2kg.
Who this mattress suits
- Two people sharing 138 cm, or one sleeper who spreads out.
- Second bedrooms where a queen would block the wardrobe doors.
- Households that want the 188 cm length rather than 203 cm.
Why choose the Basics Bonnell
The Basics Bonnell is the simplest mattress we make and it does not pretend otherwise. A 15 cm Bonnell coil unit wound from 2.2 mm wire, five turns to each coil, with a 700 gsm felt layer and sprayed fibre padding on both faces under an anti-bacterial warp-knit cover.
At 5 out of 10 where 10 is softest this reads Medium, the same rating as the Deluxe range. What separates them is the spring system and the depth: Bonnell coils at 15 cm here, individually pocketed springs at 20 cm and up in the Deluxe.
The knitted cover is OEKO-TEX® STANDARD 100 certified and the foams are CertiPUR-US® certified, with SGS testing on the materials. Certificate numbers are available from our team on request.
A Bonnell unit is the traditional build: the coils are laced together so the surface responds as one sheet rather than spring by spring. That is what makes it hard-wearing and what keeps the price where it is. It is also built the same way on both faces, so this one can be turned over — most modern mattresses cannot. The double weighs 20.2 kg. It arrives rolled and compressed rather than flat, which is what lets a 15 cm mattress come into the house as a parcel one or two people can steer.
Feel and support
| Comfort level | Medium |
| Softness scale | 5 out of 10 where 10 is softest |
| Typically suits | Most sleepers, and combination sleepers who change position overnight |
| Support system | 15 cm Bonnell coil spring unit, 2.2 mm wire, five turns per coil |
| Comfort layer | 700 gsm felt layer on each face under sprayed fibre padding |
| Top style | Tight top, one even surface across the mattress |
| Cover | Anti-bacterial warp-knit fabric |
| Certification | OEKO-TEX® STANDARD 100 cover, CertiPUR-US® foam, SGS tested |
Firmness is felt, not measured. Body shape, weight and sleeping position all change how the same surface reads, so use this level to compare our mattresses with each other rather than as a promise of how it will feel to you.
Size and fit
| Mattress size | Double |
| Dimensions | 138 cm x 188 cm |
| Thickness | 15 cm |
| Mattress weight | 20.2 kg |
| Shipping box | 30 cm x 30 cm x 145 cm |
| Bedding | Standard New Zealand double fitted sheets |
At 15 cm this sits inside the depth ordinary fitted sheets are cut for, so the double sheets already in the cupboard go straight on. It arrives roll-packed in a 30 cm x 30 cm x 145 cm box, so a flat with a tight entry is no obstacle.
Features
| Feature |
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Specifications
| Product Dimensions | 138cm x 188cm x 15cm |
| Package Dimensions | 30cm x 30cm x 145cm |
| Product Weight | 20.2kg |
| Package Weight | 22kg |
| Mattress Thickness | 15cm |
| Material | Metal bonnell spring / Foam / Knitted polyester quilt |
| Mattress Firmness | Medium |
| Mattress Top Type | Tight Top |
| Mattress Size | Double |
Package Contents:
1 x Basics Bonnell Spring Mattress - Double
Delivery, returns and warranty
- Delivery — shipped from New Zealand stock. Shipping information
- Returns — 30 days to change your mind, counted from the day you receive it. Returns policy
- 10-Year Limited Warranty — covers manufacturing faults under normal use in the home.What’s covered
Warranty periods are in addition to, and do not limit, your rights under the New Zealand Consumer Guarantees Act 1993.
Frequently asked questions
How firm is this mattress?
It is rated Medium, 5 out of 10 where 10 is softest. That level is for comparing our mattresses with each other; body shape, weight and sleeping position all change how the same surface reads.
What is inside it?
15 cm Bonnell coil spring unit, 2.2 mm wire, five turns per coil, under 700 gsm felt layer on each face under sprayed fibre padding, finished as a tight top. Total height is 15 cm.
What certification does this mattress have?
The knitted cover is OEKO-TEX STANDARD 100 certified and the foams are CertiPUR-US certified, with SGS testing on the materials, so both the surface against your skin and the layers underneath are covered. Certificate numbers are available from our team on request.
How does it arrive, and how long before it is at full height?
It arrives roll-packed in a sealed 30 cm x 30 cm x 145 cm box weighing 20.2 kg. Unroll it on the base and it is typically at full height within 72 hours.
What sheets will fit a 15 cm deep mattress?
Standard New Zealand double fitted sheets. At 15 cm it sits inside the depth ordinary sheets are cut for.
Can it be flipped?
Yes. It is built the same way on both faces, so you can turn it over as well as rotate it head to foot. Doing both a few times a year keeps the wear even.
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