It is a thin pad, and though the fill cap you can see some kind of foam inside.
To activate the Chillow, you fill with 8 cups of hot water and let it set capped for 4 hours.
Then you slowly roll it up like a sleeping bag, and bleed off all the air within through the fill cap, creating a vacuum.
Slide it into your pillowcase atop your pillow.
Maintenance is just top-off with water and squeeze out any excess air about once a month.

My understanding of how it works is it's basically just a water-driven heat sink and radiator.
Water cools the body 25 times faster then air.

I'm guessing the best-case-scenario is it will only stay as cool as the room it is in.
Which is usually cooler then your 98.6 degree head, so yeah, if it doesn't store the heat from you head, it should be cooler.
Moving air over it might get it even cooler.

I'll let you know....

[This message has been edited by Boondawg (edited 08-12-2013).]

quote I'm guessing the best-case-scenario is it will only stay as cool as the room it is in.

I didn't look into it, but the above=not neccessarily

We used to use some kind of padded like things inside our hazmat suits and this sounds similar. I dunno how they worked, but they cooled for several hours next to our skin under a heavy, almost airproof suit, and we generally wore a plastic rain suit over that. The company we contracted to had them ready for us each shift, collected them at the end of the shift and had them ready for us again the next day, so I have no idea what they were or the procedure they used to "rejuvenate" them each night. They lasted 4-5 hrs--we'd get new ones 1/2 way thru the day after lunch break.

[This message has been edited by maryjane (edited 08-13-2013).]

Sounds like a hot water bottle in reverse.

Keep us updated. I've been looking at getting one, but I really don't have the money to risk if, in fact, it doesn't work...

It'll chillow you real good when it leaks.

That "cold" memory foam is also quite good. I also heard that stickin' yer pillow in the fridge helps put you to sleep. And washing yer hands with cold water (cools down the skin and the blood flowin' though it)

but laying on a nice pair of boobies is the best.

beds should have a cut - out nook where you arm goes when you spoon, so it won't go knumb under your SI's head...

[This message has been edited by TheDigitalAlchemist (edited 08-13-2013).]

quote Originally posted by maryjane: I didn't look into it, but the above=not neccessarily We used to use some kind of padded like things inside our hazmat suits and this sounds similar. I dunno how they worked, but they cooled for several hours next to our skin under a heavy, almost airproof suit, and we generally wore a plastic rain suit over that. The company we contracted to had them ready for us each shift, collected them at the end of the shift and had them ready for us again the next day, so I have no idea what they were or the procedure they used to "rejuvenate" them each night. They lasted 4-5 hrs--we'd get new ones 1/2 way thru the day after lunch break.

This sounds like some of the foam that a company I used to work for worked. We mixed special ceramic coated beads of wax into the mixture that makes the foam. So after the foam was poured it had these little bits of ceramic coated wax inside. The wax melted at about 83 degrees and so as your body heat or the outside heat came in contact with the foam/wax beads the wax melted. The change of phase from solid to liquid took a lot of energy so it would suck the heat off of you quite well and last a long time.

To recharge it all you had to do was put it back in a place that was colder than the wax went solid. This was supposedly used in things like the Hazmat suits and Firesuits.

It was also used on ski equipment like boots, gloves and jackets. Since you generated a lot of heat when you come down the hill skiing you melted the wax. When you were on the lift going back up you cooled off and the wax would return the heat to you as it went solid again.

Sort of like magic. It was pretty expensive though.

Well, I slept on it all night.
I liked it.
It stayed cool all night, at least cooler then my normal pillows.
When I felt it with my hand this morning, it didn't feel chilled at all, but laying my head on it all night it sure did.

I will say that to me, it was well worth the $12.99.
In the future, I may try it frozen!

[This message has been edited by Boondawg (edited 08-13-2013).]

Will it work in Texas ?
I have never seen a need for one, asleep or awake (as maryjane referenced). I have though noticed falling asleep on a leather or vinyl couch will make you sweat if you are naked/no shirt.
Perhaps you have a ... bad choice of bed/pillow covering. What is the liner or cover made of ?

What's the matter Boonie going through the change and having hot flashes?

quote Originally posted by cliffw: Will it work in Texas ? I have never seen a need for one, asleep or awake (as maryjane referenced). I have though noticed falling asleep on a leather or vinyl couch will make you sweat if you are naked/no shirt. Perhaps you have a ... bad choice of bed/pillow covering. What is the liner or cover made of ?

TMI, Just TMI

But I have to agree with the pillow cover having something to do with it, in the winter Melanie has flannel sheets and pillow covers for our beds, great in the winter, you never have to crawl into a cold bed, but don't even think about using them in the warmer weather.

Steve

------------------
Technology is great when it works,
and one big pain in the ass when it doesn't



Detroit iron rules all the rest are just toys.

[This message has been edited by 84fiero123 (edited 08-13-2013).]

All my life pillows have held head-heat.
For me, the cooler my pillow, the better.

I tried them all, from the old buckwheat Sobakawa (too noisy) to the new micro-bead Sobakawa (good, but uncomfortable).
Foam, feathers, and every fill inbetween.

This is the best so far at staying cool.

quote Originally posted by Boondawg: All my life pillows have held head-heat.

There is no cure for a hot head, .