Therm-a-Rest Hyperion 32F/0C Ultralight Down Mummy Sleeping Bag

If you're not camping in the winter... This sleeping bag is absolutely perfect in every way. It's hands down the most packable sleeping bag I have ever owned. And it gets the job done. I have had soo many cozy nights in my fluffy down friend. I love this piece of gear and I'm grateful I put time and effort into selecting the perfect sleeping bag for my needs.

probably the lightest but warmest bag out there.

This is a summer bag only. It it not near 41 Degree comfort range and you would die @ 32. This was tested at 50 deg and it was very cold and does not breath well. It still gets 2 stars because it is extremely light and packs very small.

Very comfortable materials used. Very compact. I probably wouldn’t trust it in 32 degree weather. Used it in 40 and was still a little on the cold side. Only downside is because it packs so small it’s a pretty tight fit for a full-size adult. If you’re okay with sleeping without moving an inch it’s perfect. Overall not disappointed and would buy another one

The biggest drawback for me is how slippery the material is. There's a lot of sliding around even despite the two attachment loops. I often have to make adjustments through the night, esp. when sleeping on a small incline (and most of the nights there's one, since out in the wild it's hard to find an absolutely flat spot for a tent).

I purchased this elsewhere but the review applies to wherever thermarest sells. The Hyperion 32 is an excellent bag. It’s weight can’t be beat. The construction is superior but there is a design flaw. I gave the bag three stars because of the zipper and draft tube placement. It is clear that the bag is made for those who sleep on their backs. As for reality that doesn’t happen. I tend to move and the only way I could be fully comfortable, and not get a cold spot along the zipper, was to stuff my down jacket along the zipper. I didn’t have any issues with the right side of the bag so it wasn’t the strategically placed down. The draft tube is on the top. Cold goes down. So it’s placement, on the top of the zipper, I feel, is a design flaw. But I’m still thinking that wouldn’t make a difference and a different zipper would. I know for sure it was the zipper because it felt cold and the bag did not. The coldest it got was 35° and that was only one night as the other nights, 5, were 40-45° I do not consider this a 32° bag when I get a draft at 42° and I run hot so I love cold weather. I shouldn’t have to wear fleece, or stuff a down coat, to be comfortable in a bag that’s rated 42° for comfort. I would rather use my Cat’s Meow from 1996. That is a 30° bag with primaloft and is good at 30°. It’s the only bag I’ve had that’s rated for 30° that isn’t freezing at it’s temp rating. Yes, I know bags are rated differently now. The only reason I wanted this bag is because I can drop a pound.

Excellent sleeping bag. Pacs down to the size of a nalgene bottle. I sleep on the warm side and I would take this camping to near 0. Only downside to this bag is the zipper doesn't go all the way to the bottom so you can't get a leg out if you are too hot.

This seemed an attractive offer as written, but what is not stated is the hidden customs charges that adds a further £80 to UK customers. I've had to reject the item and a month later I'm still waiting for a refund.

Vary comfortable and light great for summer backpacking and camping easy to pack back up

Love this! You have to be comfortable being hugges while you sleep as it pretty narrow but it packs so small. Worth the money.

Dormant souvent en hamac, le fait que le duvet soit reparti à 70% sur le dessus et donc 30% sur le dessous me gêne, j’ai donc froid dans le dos. De plus une des sangles dû sac de compression a lâché.. Cependant service client réactif et à su répondre à mes besoin.