Viewing a single comment thread. View all comments

regaphysics t1_izbhi9m wrote

Reply to comment by javaavril in BIFL Request: Side sleeper pillows that will last at least 5 years by [deleted]

I didn’t state anything as fact other than longevity and resilience. Down absolutely is going to lose resilience at a faster rate than many other materials - that is objectively knowable. Whether it’s still ok for your neck/head that depends. Some people can sleep on anything.

I’m not convincing you you don’t like a thing. I stated down pillows won’t last 15+ years as you said. I stand by that, although I’ll amend that to say it depends how you quantify “last.” They’ll lose resilience faster than several other materials.

(And sleeping cooler than a closed cell foam isn’t a high bar. They’re both very highly insulating. Down is used in coats exactly because it stops convection ( air circulation) so well.).

Edit: btw nothing is 100% goose down. That doesn’t exist. Even 1100 fill power is about 2-3% feathers (and often 2-3% down fibers ie broken down clusters). Check your law tag. Guarantee it doesn’t say 100% down. 750-800 fill power is generally about 85% down - of which it’s often only 80% clusters.)

1

javaavril t1_izblqck wrote

"simply not a good pillow material". Stated as fact when that is your opinion.

I have pillows over a decade old that are just as fluffy and supportive as my newer ones.

Goosedown excels at thermoregulation, air moves through the pillow, and doesn't cause overheating.

1

regaphysics t1_izbmtnp wrote

Yes, not a good pillow material as defined by objective criteria. As I said, if you don’t want to use objective criteria then sure, sleep on garbanzo beans because anyone’s opinion goes.

And no, down doesn’t excel at thermoregulation. It traps heat, limits convection, and doesn’t absorb much moisture - which is how most natural materials regulate - in addition to losing its ability to loft when it absorbs moisture. Again, that’s precisely why down is used as an insulator in jackets (and geese). It’s whole purpose is to trap heat.

1

javaavril t1_izbo6qw wrote

That's your opinion. Down is soft, supportive, and breathable. Great qualities for pillows. You're strawmanning again with the chickpeas.

It does, it wicks moisture through filaments and is highly breathable. It regulates the body temperature of geese, it's job is thermoregulation.

Edit: in case anyone gets this far, I highly doubt it, but I had to block that guy because he's made of nonsense.

Geese molt down several times a year, but they always have down, they molt their flight feathers in summer and can't fly for a few months. Down is there for thermoregulation.

"Geese are warm blooded and their temperature must be regulated within a certain limit. This is only possible when enough wind reaches their skin to take away the heat. The down protects the birds from the cold during the winters and keeps the bird well aerated, so that its body temperature is also optimally regulated during the summers."

1