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SleepMaker Miracoil Advanced Comfort review

Inner-spring build. Priced at $2499.

CHOICE Expert Rating

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CHOICE Expert rating

This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.

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The product's best features and benefits

Bad points

Drawbacks or issues you need to know about
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Recommended View more details.

We recommend mattresses with a score of 70% or more.

CHOICE Expert Rating View more details.

Made up of unused, out of the box comfort score (male and female average, 30%), comfort score after eight years of use (30%), stabilisation (15%), sagging (10%), sweat repellent (10%) and usage wear/damage (5%). We also assessed smell out of the box and two weeks after opening for models tested prior to May 2020. These results no longer contribute to the overall score and models tested after May 2020 do not undergo the smell assessment.

Comfort score, unused mattress - male View more details.

We conduct body support tests for both dorsal (on back) and lateral (on side) positions based on male body types only.

Comfort score, unused mattress - female View more details.

We conduct body support tests for both dorsal (on back) and lateral (on side) positions based on female body types only.

Comfort score after eight years of use (overall) View more details.

We roll a cask-shaped roller over each mattress for 30,000 cycles to simulate approximately eight years' use. Then, based on sleeping assessment in dorsal and lateral positions. Note that this is not an average of the male and female results. It's a separate test that assesses combined male and female usage of the mattresses at the same time.

Comfort score after eight years of use - male View more details.

We roll a cask-shaped roller over each mattress for 30,000 cycles to simulate approximately eight years' use based on male body types only.

Comfort score after eight years of use - female View more details.

We roll a cask-shaped roller over each mattress for 30,000 cycles to simulate approximately eight years' use based on female body types only.

Stabilisation score View more details.

Using an oscilloscope we measure the movement of the mattress after a standard impact (17.5kg), simulating the turning body of a sleeping person. We also count the number of bounces up and down before the mattress is calm again. Higher-scoring mattresses exhibited fewer bounces and less movement during standard impact.

Sagging score View more details.

We roll a cask-shaped roller over each mattress for 30,000 cycles to simulate usage of approximately eight years. Then, we measure height and firmness straight out of the box, and again after this test to note any differences. Models with a higher score showed limited signs of sagging over time. Lower scoring models show increased sagging over time. Models with a higher score will feel almost exactly the same as they did out of the box after eight years of use.

Sweat repellent score View more details.

We assess permeability and water intake. Lower scoring models absorb more fluids which can cause damage and odour buildup over time.

Usage wear/damage score View more details.

We roll a cask-shaped roller over each mattress for 30,000 cycles to simulate approximately eight years' use. Visible damage such as cracking, broken springs or pilling contributes to fatigue score. A higher score means less damage.

Smell score (brand new) View more details.

A lower score equals stronger packaging odour. Smell is no longer assessed as of May 2020. Existing smell assessments that were conducted prior to this date no longer contribute to the overall score.

Smell score (after a fortnight of use) View more details.

Assessed after two weeks of use. A lower score means the mattress still retained packaging odour after a fortnight. Smell is no longer assessed as of May 2020. Existing smell assessments that were conducted prior to this date no longer contribute to the overall score.

Actual firmness - our test results View more details.

The level of firmness based on our tests.

Claimed firmness - retailer View more details.

The level of firmness claimed by the retailer.

Firm
Insulation (mattress warmth) View more details.

How warm the mattress feels during use.

Availability View more details.

'Tested models' should still be available in shops. 'Discontinued models' may still be available second hand or online.

Tested model
Price (RRP) View more details.

Recommended retail or typical retail price for "retail" mattresses and RRP for bed in a box mattresses.

$2499
Price paid during sale/after bargaining View more details.

Mattresses sold at traditional retail stores are often on sale or steep discounts can be obtained by haggling. This data is designed to illustrate the steep markups that are applied to mattresses by retailers and the amount you can save by waiting for a sale and asking for a deal. Bed in a box mattresses are often on sale, but they are typically sold at a lower price point so savings aren't as significant.

$1150
Core type
Light spring
Springs per metre squared View more details.

Mattresses are cut open to count springs.

176
Number of layers View more details.

A corner of the mattress is cut to count layers and note layer types. A visual cross-section of each mattress is included in the gallery of each product page.

14
Weight (kg)
37
Thickness (cm)
39
Warranty (years)
10
Pickup fee - rural areas View more details.

Some bed in a box brands will charge a pickup fee in rural areas, if you wish to exchange the mattress. This varies based on location.

na
Pickup fee - metro areas View more details.

Most bed in a box brands will organise a free pickup in metro areas, if you wish to exchange the mattress.

na
Trial period (days) View more details.

If applicable. Bed in a box brands offer home trial periods that range from 30 to more than 100 nights. If you're unhappy with your purchase, you can exchange the mattress for a different model (if available) or a full refund.

na
Exchange fee ($) View more details.

Occasionally, you'll encounter brands that charge an exchange fee, on top of the pickup costs, if you wish to exchange the mattress.

na
Handles View more details.

A mattress with more handles is easier to rotate, flip and move.

0
Handle positions
na
Memory foam layer View more details.

Many spring mattresses include a memory foam layer. This is often unadvertised.

Yes

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