How long do these stay cooling?
1690044
This pillow is very hot to sleep on. Shredded memory foam is encased in a thin layer of solid foam which interferes with air circulation.I would recommend buying a pillow made in USA.
620758
They are not supposed to "cool" the water. They will keep water cold (I add ice cubes) for a good 20 hours. Contigo says there is a lifetime warranty on them. Maybe you have a faulty one??? Contact Amazon if that's where you bought it.
1901295
I would say about an hour although I wouldn't ice anything for that long consecutively. It freezes pretty quickly also. We love these and use them all the time.
957023
I have had them up to 8 months without any problems. I keep mine in a cool dry place.
2073630
I usually keep it on for 20-30 mins, and it stays plenty cold. I haven't kept it on longer so I'm afraid that's as far as I can offer information.
1172814
The packs stay cold for an hour or so; you may need to replace; however it's not medically advisable to leave a cold pack next to skin for over 20 minutes. I do, but I wrap it in a kitchen towel to avoid frostbite.
2204377
Indefinitely as long as you store them in a safe place. You should keep them some place where they will not be exposetto temps above 80 degrees.
1627123
I bought two and they each have stayed on for a couple of hours with no damage. I must qualify this statement, however, by saying that I've had these mug warmers only about a week.
2224179
They have an expiration date on them. I buy a case and keep it in a cool room, mine has lasted up to a year.
419034
Mine last 3 hours even in light breezes. I put them in flower pots around my patio.
2243940
they take about an hour to re freeze, however they dont stay cold for very long.
1090431
They stay fairly cool. There have been a couple times when I needed potholders for comfort.
1080885
I suppose they sweat after a certain period of time. I put them in a small cooler of mine that I use like a lunchbox. But I use it as more than a lunchbox, really, because I like to have at least two meals with me at all times -- and they last all day -- i.e., at least 8 hours. But I suppose there are days when I don't get home for maybe 12 hours, and the stuff in my cooler is still cool. By then, the fit and fresh coolers are melted inside, but still cold. And obviously, sweating a bit. I just checked the stuff that I put in there at about 8:30 this morning -- almost 9 hours ago -- still cold. Hope this helps. I suppose they sweat after a certain period of time. I put them in a small cooler of mine that I use like a lunchbox. But I use it as more than a lunchbox, really, because I like to have at least two meals with me at all times -- and they last all day -- i.e., at least 8 hours. But I suppose there are days when I don't get home for maybe 12 hours, and the stuff in my cooler is still cool. By then, the fit and fresh coolers are melted inside, but still cold. And obviously, sweating a bit. I just checked the stuff that I put in there at about 8:30 this morning -- almost 9 hours ago -- still... » Read More I suppose they sweat after a certain period of time. I put them in a small cooler of mine that I use like a lunchbox. But I use it as more than a lunchbox, really, because I like to have at least two meals with me at all times -- and they last all day -- i.e., at least 8 hours. But I suppose there are days when I don't get home for maybe 12 hours, and the stuff in my cooler is still cool. By then, the fit and fresh coolers are melted inside, but still cold. And obviously, sweating a bit. I just checked the stuff that I put in there at about 8:30 this morning -- almost 9 hours ago -- still cold. Hope this helps. « Show Less
1570404
I do not know but have never needed any extra help keeping my computer (Mac Air) cool which I use almost all day for work and writing (no gameplay). When this gets 'soft' from heating after 4-5 hours, I just pop in the freezer for 15-20 minutes. It solidifies again and I start over.
71929
If kept in a cool, humid free area they can last for years. If I remember correctly I'm thinking 10 years +/- a year or two.
2054368
Can be stored indefinitely as long as they are not punctured and use depends on a lot of things...elevation valve setting (wide open or throttled) but frugal use I have got around 7 hours of cool time
1355957
Yes, to both questions. They stay so cold oftentimes whatever is inside gets pretty icy. When I put room temperature liquid in it takes a few minutes to get it chilled but it eventually gets cold.