Sidewinder SL 20°

Reputable brand. Will likely be expensive. For you 5°C you want a 0° or a -7° bag. In north America that would be a 30 or a 20 and I recommend a 20 Figure out synthetic vs down and side sleeper vs back sleeper. Watch a bunch of YouTube. Read articles.

I'm in Canada. My Big Agnes bag is still called sidewinder 20 😁 Over the years I've learned some understanding of freedom units

It really depends on a person, I'm very comfortable in my side sleeping big agnes 20 at 22ish in just my underwear. And it's a very roomy mummy bag

What you are describing to me just sounds like a poor quality fabric. Not all sleeping bags created the same. I love my big agnes also because of that inner fabric. Maybe try another brand? Otherwise a liner could help as well

I bought the 20 and love it. I honestly hated backpacking until I got this and could sleep on my side. We mainly only do winter camping, so I needed the 20. I don't find it overly bulky by any means.

No, I don't feel it's any thinner on any side imo. Mainly because there isn't really a "bottom". Its typically in the 20s when we're camping and I'm still in pants, sweatshirt, and socks. So take that for what you will. I think it depends on everyone's tolerance ha.

I love my big Agnes sidewinder

I got the big Agnes sidewinder bag. It's a dream. It's for side sleepers, so there is tons of room. When its warm, I unzip and use it as a blanket. It is sooooo comfy.

I'm in love with the Big Agnes Sidewinder- it's so good if you're a tosser and turner!

Did this person have any basis for their statement? They make very good bags. They're not the lightest or the cheapest but they are also not the heaviest or most expensive. They're very good quality bags made by a trustworthy company that backs up their products with a good warranty.