Nestivo

Tasman Eco Siena

Cots

Nestivo’s take

The drop side may make lifting a baby easier for parents who struggle to reach over fixed rails. Older owners describe a sturdy cot, but also problems with sliders and finish wear. Smooth locking and the condition of the mechanism matter, especially second-hand.

Compare Tasman Eco Siena

Mattress size & cot fit

Current Siena recommends 131 × 75 × 11 cm. Its linked Dropside Cots manual gives a maximum thickness of 12 cm. Confirm the label on your cot, especially older models.

Dimensions shortlist options; actual fit, firmness, condition and manufacturer approval still need checking.

Manufacturer dimension source · Dimensions checked 2026-10-31

Manufacturer manual — Siena named on cover; mattress limits on page 2

Scores at a glance

What these scores mean and how we assess them

Low toxins
40 / 100
Performance
67 / 100
Sustainability
45 / 100
Availability
40 / 100
Price / value
54 / 100

Why parents choose it

What to think twice about

Evidence behind the scores

Low toxins — 40 / 100

General non-toxic stains/finishes claim; not a quantitative VOC/emissions result. No exact-model formaldehyde emissions report located; construction disclosure is incomplete.

Cot material composition and disclosure

Radiata pine described; complete base, adhesive and coating composition not located.

Score: 5 / 10
What earns 10/10?*

Full material/component disclosure.

Low-emission paints, stains and finishes

General non-toxic stains/finishes claim; not a quantitative VOC/emissions result.

Score: 5 / 10
What earns 10/10?*

Independently verified low-emission finish.

Formaldehyde and engineered-wood emissions assurance

No exact-model formaldehyde emissions report located; construction disclosure is incomplete.

Score: 2 / 10
What earns 10/10?*

Product-level emissions testing/certification.

Independent product safety/material verification

Published Siena page states AS/NZS 2172:2013. Explicit coverage of both current 2024 Australian standards remains unconfirmed. Ask supplier before a new purchase.

Score: 3 / 10
What earns 10/10?*

Current product-level safety plus material/emissions certification.

Ingredient/material disclosure completeness

Radiata pine described; complete base, adhesive and coating composition not located.

Score: 5 / 10
What earns 10/10?*

Full formulation/component list with functions or composition.

Performance — 67 / 100

Owners often describe a sturdy frame, but experiences with drop-side tracks, instructions and scratch resistance are mixed. The mechanism and finish are the main reported weaknesses, making it less straightforward than a simple fixed-side design.

Confidence: Medium. Recorded owner reports are years old, so their relevance to a new Siena is less certain.

Cot safety-standard compliance

Published Siena page states AS/NZS 2172:2013. Explicit coverage of both current 2024 Australian standards remains unconfirmed. Ask supplier before a new purchase.

Score: 6 / 10
What earns 10/10?*

Current applicable standard clearly documented for exact model.

Stability and structural performance

Construction and supplier compliance claims support limited structural credit; no independent long-term structural dataset retrieved.

Score: 6 / 10
What earns 10/10?*

Strong independent/long-term evidence.

Assembly and adjustment practicality

Assembly instructions/flat-pack construction are described. Ease in daily use is not independently established.

Score: 7 / 10
What earns 10/10?*

Easy, well-documented assembly and adjustments.

Mattress-height and conversion usability

Safety-Slide drop side, two base levels and side removal for toddler use; five-year warranty claimed.

Score: 7 / 10
What earns 10/10?*

Useful, safe, easy adjustments/conversions.

Durability and longevity

Safety-Slide drop side, two base levels and side removal for toddler use; five-year warranty claimed.

Score: 8 / 10
What earns 10/10?*

Long life, warranty/parts and conversion evidence.

Sustainability — 45 / 100

Keeping a serviceable cot in use for another child could reduce replacement purchases. That depends on sound hardware and ongoing support, which cannot be assumed from older owner reports. The timber description is incomplete on sourcing and finishes, with limited manufacturing and end-of-life evidence.

Renewable / plant-based material share

Timber components are disclosed, but the finished-product renewable percentage is not quantified.

Score: 6 / 10
What earns 10/10?*

High quantified renewable share.

Durability and reuse lifespan

Safety-Slide drop side, two base levels and side removal for toddler use; five-year warranty claimed.

Score: 8 / 10
What earns 10/10?*

Long size range, robust materials, warranty/repair data and reuse evidence.

Manufacturing powered by renewable energy

No quantified renewable-energy share for the relevant cot manufacturing site retrieved.

Score: 2 / 10
What earns 10/10?*

Independently reported 100% renewable electricity at relevant manufacturing sites.

Manufacturing impact disclosure

No cot-specific quantified manufacturing impacts or lifecycle comparison retrieved.

Score: 2 / 10
What earns 10/10?*

Public product LCA or independently assured impact metrics.

Packaging sustainability

Flat-pack/packaging information is available; current complete recycled-content/recyclability evidence was not retrieved.

Score: 3 / 10
What earns 10/10?*

Verified compostable/reusable or high-recycled-content recyclable packaging.

Sourcing transparency

Timber origins and supplier traceability are not detailed in the reviewed information.

Score: 3 / 10
What earns 10/10?*

Full product-material provenance and supplier/chain identifiers are documented across all relevant inputs. None of this catalogue is assigned 10 on current records.

Availability — 40 / 100

Published Australian supplier listing; live availability and exact retailer product code not confirmed.

Retail availability and purchase convenience

Published Australian supplier listing; live availability and exact retailer product code not confirmed.

Score: 4 / 10
What earns 10/10?*

Broad major-retailer availability.

Price / value — 54 / 100

This is a substantial initial purchase before any separate mattress or other required items. Check the complete compatible setup and the cot’s practical adjustments before deciding the price represents good long-term value. Siena cot advertised at $699.99 on Seena manufacturer page; purchase directed to Baby Bunting.

Typical unit / upfront price

Siena cot advertised at $699.99 on Seena manufacturer page; purchase directed to Baby Bunting.

Score: 5 / 10
What earns 10/10?*

Among lowest relevant current prices.

Shipping, size and promotion changes; verify before purchase.

Value for performance / lifetime cost

Siena cot advertised at $699.99 on Seena manufacturer page; purchase directed to Baby Bunting.

Score: 6 / 10
What earns 10/10?*

Excellent performance-to-price or strong lifetime economics.

Shipping, size and promotion changes; verify before purchase.

* Benchmarks describe the scoring rubric, not a guarantee of safety or suitability. Read them alongside the product’s findings and limitations.

Sources & evidence confidence

Product evidence last reviewed: 2026-10-08

General plastics research

These studies explain the wider research behind materials assessment. They do not test this product or establish its safety, chemical content or exposure.