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Sonar Thermal Balancing (Outlast) Mattress Toppers

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Thermal Balancing (Outlast) Mattress Toppers by Sonar

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The Sonar® Thermal Balancing product range is designed to absorb, store and release heat while you sleep, helping maintain optimal thermal comfort.

The products feature OUTLAST® technology which proactively manages heat and moisture to help provide a better, more comfortable night’s sleep throughout all seasons. The technology is tested and proven to alleviate spikes in skin temperature that cause sleep disturbances, and can help maintain thermal compatibility between couples.

OUTLAST® technology is superior in bedding products because rather than wicking away the sweat after the fact, it pro-actively manages heat and balances temperature which controls the production of moisture before it begins.

In stock

Product Name Price Quantity
Thermal Balancing (Outlast) Mattress Topper Single
Thermal Balancing (Outlast) Mattress Topper King Single
Thermal Balancing (Outlast) Mattress Topper Double
Thermal Balancing (Outlast) Mattress Topper Queen
Thermal Balancing (Outlast) Mattress Topper Super King

Sonar Thermal Balancing products feature Outlast technology, that was originally developed for NASA.

As leaders in heat and moisture management technology, OUTLAST® has conducted research that suggests that sleep is not only important, but rather vital to health and well-being. According to a recent study by a leading university, there are six major reasons for needing a better night’s sleep; memory, metabolism, safety, mood, heart health, and disease.

The technology utilises phase change materials that absorb, store and release heat for optimal thermal comfort. It has the ability to continually regulate the skin’s microclimate. As the skin gets hot, the heat is absorbed, and as it cools, that heat is released.
Sonar Thermal Balancing will proactively manage heat and help reduce sweating. They are perfect for all seasons, and provide thermal compatibility between sleeping partners.

When using OUTLAST® bedding products keep in mind that the more products you use, the better your sleeping experience becomes. For example it is suggested a combination of a quilt, a mattress topper and a pillow or pillow cover.

Single 92 x 190cm
King Single  107 x 204cm
Double 138 x 190cm
Queen 152 x 204cm
Super King  183 x 204cm

Please note there may be a dispatch delay of up to 5 days when ordering this item. Please contact us if there is urgency with your order to discuss a remedy. 


queenb aim to ship all orders within 4-5 days of placement of the order. We offer free shipping* on all orders over $100.00NZD throughout New Zealand and Australia. Orders under $100.00NZD will incur a $6.50NZD freight charge throughout New Zealand, and a $10.00NZD freight charge for parcels delivered to Australia.  Please note furniture, beds and mattresses can only be freighted within New Zealand and are excluded from our free shipping offer.  For safety reasons we cannot air freight Christmas Crackers. View our Delivery Information page for more details.


At queenb we stand by the quality of all of our products and are committed to ensuring you are satisfied with your purchase. If you are unhappy with your purchase you may return it to us within 7 days of delivery with the condition the product remains in its original, unopened, unused condition, complete with all original packaging, tags and instruction manuals. Please note we charge a $10NZD restocking fee which be deducted from the purchase price on all refunds.

Due to hygiene reasons we cannot accept returns of duvet inners, mattress toppers or pillows, unless they are faulty. View our Returns Policy for more information.

Write a Review Recent Customer Reviews
Does the job Review by Marty
When I started using this topper I wasn't sure that it was working, however, I decided to persist with it. Over the past few weeks I have found that I'm not waking up due to overheating as I had been, so I'm pleased to say that it performs as described. (Posted on 22/01/2018)
It does what it claims. Review by Anne
Both my husband and I are hot sleepers. This product claims to balance out the temperature and it does. We recently purchased a new bed/mattress that claimed to have technology to also balance the heat generated while sleeping. Sadly it fell well short of its claim and as a last resort, I purchased the Sonar Topper to help keep us cool at night. We are both pleased with the product and recommend it to anyone who has trouble with temperature control. (Posted on 28/08/2017)

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