Name: Rab Ultrasphere 4.5 Sleep Mat
Brand: Rab
SKU: QMA-06-DPW-REG-WDE
Price: 191.99 AUD
Availability: InStock
Rating: 4.6 (51 reviews)

[data-product-photos] .product-main-slide [data-dw-media-src] { display: none !important; } Rab Ultrasphere 4.5 Sleep Mat

[data-product-photos] .product-main-slide [data-dw-media-src] { display: none !important; } Rab Ultrasphere 4.5 Sleep Mat (370g)

1 13

Rated 4.6 out of 5

Based on 51 reviews

$299.95 $191.99 CLEARANCE 36% OFF

Size

Regular Wide

Quantity

AU delivery Target Standard: 4–6 FedEx: 3–5 business days* 30-day returns Returns & exchanges Support & FAQs Delivery & warranty

From bikepacking through mountain ranges to multi-day trail running, the award-winning Ultrasphere 4.5 offers peerless warmth for when you can’t compromise on weight.

Weight : Regular 370g, Regular Wide 444g, Long Wide 505g

Packed Size : Regular 15cm X 9cm, Regular Wide 19 x 9cm, Long Wide 19cm X 9cm

R-Value : 4.3

Repair Kit Included

Activities

We recommend using this for:

Expedition
Fast & Light Adventures
Mountaineering
Trekking

When both warmth and low weight are crucial, the award-winning Ultrasphere 4.5 is the ultimate packable, featherlight air mat. Its ground-breaking design includes two layers of heat-reflective TILT, which reduce radiant heat loss, and offset air chambers that trap heat within the construction, allowing you to recharge comfortably without the need for high-volume insulation. Combined with a soft, exceptionally lightweight fabric, the mat’s weight-saving construction makes it ideal for bikepacking, thru-hiking, and multi-day mountain running.

With a comfortable tapered mummy shape that eliminates unnecessary bulk, the mat is thick and supportive, so that you can catch vital rest and restore the energy reserves needed for your action-fuelled days on the trail. When it’s time to pitch for the night, the low-profile two-way valve and inflation sack make camp setup quick and easy.

Featuring an included repair kit and unrivalled warmth-to-weight ratio, the Ultrasphere 4.5 is honed for fast-paced exploring in demanding mountain conditions.

Weight:Regular 370g / 13.1oz. Long Wide 505g / 17.8oz
Main Fabric:20D Recycled Polyester outer fabric with internal TPU Coating and fluorocarbon free DWR
Dimensions:Regular: 183cm x 51cm x 8cm. Long Wide: 196cm x 64cm x 8cm
R-Value:4.3
Packed Size:Regular 15cm x 9cm (5.9in x 3.5in) / Long Wide 19cm x 9cm (7.5in x 3.5in)
Product Code:QMA-06
2 layers of TILT reflective film help reduce radiant heat loss without adding weight or bulk
Offset weight saving internal cut outs help disrupt the flow of convection currents and keep warm air static
R-Value: 4.3
Thickness: 8cm
Packed size: 18x9cm
Tapered mummy shape to save weight
Low profile two-way valve for easy inflation and deflation
Pump sack included for rapid and hygienic inflation
Roll-away stuff sack with repair kit included

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Frequently asked questions

Can I return or exchange my order?

Eligible items can be returned within 30 days of purchase, unused with original packaging and labels. Refunds may incur a handling fee; exchanges and store credit avoid it. Return postage is at your cost; conditions apply.

Returns policy

What if I need warranty or repair help?

Contact us before sending anything back, with your order details, photos and a brief description of the issue. We will help with warranty, repair or spare-part options. Coverage varies by product; your consumer rights still apply.

Get warranty help

How long will my order take to arrive?

For in-stock, standard parcels, standard AU shipping targets 4–6 business days after dispatch and FedEx targets 3–5 business days after dispatch. These are targets, not guarantees. Remote and bulky deliveries can take longer. Preorders, public holidays and carrier delays may affect timing. Contact us if you need an item by a specific date.

Delivery information

How much does shipping cost?

Standard AU shipping is $10, or free on eligible orders over $250, excluding heavy or bulky items. FedEx is $25. Product-specific freight charges apply to heavy or bulky items with either service, and remote-area surcharges may apply. Available services and final shipping charges are shown at checkout.

Delivery information

Will I receive tracking details?

Yes, tracking details are sent by email when your order is dispatched. Allow time for the carrier’s first scan. If you cannot find the email, contact us with your order number.

Contact our team

Write a Review

average rating 4.6 out of 5

Based on 51 reviews

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92% of reviewers would recommend this product to a friend

51 Reviews

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Reviewed by Tim J.

Verified Buyer

I recommend this product

Age Range

55 - 64

Do you recommend this product?

Yes

Rated 5 out of 5

Review posted

Excellent , easy to inflate - packed size amazing

Excellent mat that doesn’t slip around , no noise , significant padding and insulation

Was this helpful?

Reviewed by Paul C.

Verified Buyer

I recommend this product

Age Range

65+

Do you recommend this product?

Yes

Rated 5 out of 5

Review posted

Great mat

This is a great, lightweight mat that packs up really small. About the size of a can of coke.

Was this helpful?

Reviewed by Paula M.

Verified Buyer

I recommend this product

Age Range

55 - 64

Do you recommend this product?

Yes

Rated 5 out of 5

Review posted

Very comfortable

I haven’t had it for long and haven’t used it in cold weather yet so can’t rate it for durability or warmth. But it is comfortable and easy to blow up with the bag.

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Reviewed by Jeremy P.

Verified Reviewer

I recommend this product

Age Range

35 - 44

Do you recommend this product?

Yes

Rated 5 out of 5

Review posted

Good as

I waited a year before I wrote this to see how it went, but it's been great. As others mention, a bit slow to deflate, but otherwise really comfy, compact and fairly warm and so far durable enough.

Mostly used around Queenstown, NZ

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Reviewed by Chris D.

Verified Buyer

I recommend this product

Age Range

55 - 64

Do you recommend this product?

Yes

Rated 5 out of 5

Review posted

Warm Mat

These mats give great thermal protection and comfy to sleep on

Was this helpful?

Rab Ultrasphere 4.5 Sleep Mat

Activities

Frequently asked questions

Excellent , easy to inflate - packed size amazing

Great mat

Very comfortable

Good as

Warm Mat

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