G'day Nick,

As the baffles on the Trek TkII Sleeping Bag are filled with loose down, it is normal for it to sometimes settle to one side. You may have to shake out to let the down puff up properly.

There should be an even amount of down in each baffle, so if you give it a go trying to move the down around, and you still feel like it doesn't look right - give us a call and we'll try to get to the bottom of it. 

G'day Monia,

As you're 160cm tall, I'd say that the small size would be the best for you, as there will be less space in the bag, making it more efficient at keeping you warm. 

Hi Kayla,

I've just had a look at the instructions that come with the bag, and it says that the Trek TkII is washable, however they advise that you don't dry clean or machine wash it as that may compromise the bag. 

As this bag is filled with down they recommend using an approved down cleaner, specifically the Granger's brand, and then hand washing it in a large tub. 

Hi Baronia. These sleeping bags come in three lenghs and widths. The Short version is 170cm Long x 74cm Wide, Regular measures 183cm Long, 76cm Wide, and the Long measures 195cm Long x 81cm Wide. They all have a slightly tapered foot end and are ideal for people with a larger frame or those who prefer the snuggly feel. The bag can easily be opened out fully to be used as a quilt for those warmer nights. The bag also features an internal pocket to keep your wallet or gadgets.

Hi David, I'm sorry to hear you had a bad nights sleep, there's nothing worse than when you just can't get warm enough! The Trek sleeping bags are very popular and certainly a good choice, but if you prefer a nice roomy fit consider the Sea to Summit Basecamp, these are a more generous size that the Trek. If you were too cold in your Oztrail bag with a lower limit of -7, then I think you should go for either the Trek TKIII, with a comfort rating of -5 and lower limit of -11, or the Basecamp BCIII with a comfort rating of -8 and a lower limit of -15. Remember, if you’re too hot you can always open the zip to let a bit of cool air in. I hope this helps, if you'd like to discuss this further please give us a call on 1300 914 007.

G'day Emma - The Trek II will probably be more than suitable. It has a comfort rating of -1°, meaning the cold shouldn't wake you up until it drops below that temperature. This obviously varies from person to person, depending on whether you're a warm or a cold sleeper. But not by much. On the warmer nights, you can simply unzip the bag and use it like a quilt. Hope that helps. Cheers, Paul

That's right Ed, as long as you have a left and right zipper from the same series of bags then they will join together. Different length bags will still join, but the zip will finish short of the end on the longer bag. All temperature ratings on our site are in degrees Celsius.

Hi Ruth, Down is one of the most compressible fibers and packs down into a small compression bag (10-3.3 Litres) which measures 160 x 35.5cm. Comparing this bag, were you perhaps considering the other Trek series models? Between these models (Trek I, II & III) the basic difference is in the fill weight of down, with more fill resulting in a warmer comfort rating but this also alters the stuffed size and weight. Please also note that the lighter TkI only comes in regular and long length, not a short like the TkII & TkIII, which is an important consideration for efficiency, as a closer fit will reduce heat loss and energy wastage. Please feel free to give us a call for more detailed information.

Hi Junyan, all the Sea To Summit sleeping bags have Ultra Dry Down. The Trek series are filled with 650+ loft Ultra Dry 85/15 Premium Duck Down.