[Cass]

I've used a bunch of different pillows (cherry stone, wheat, etc) and found that, while the initial heat is great and feels better than a hot water bottle, they only stay properly hot for about five to seven minutes. Once when I had a bad back pain day, I put the microwave next to the bed so I could keep a constant reheating cycle going.

[SamBam]

I agree. The buckwheat-filled pillows I got my kid stay warm about 10-15 minutes tops, no matter how hot I get them in the microwave.

[hilbert42]

Now, I like the idea of the microwave to reheat it, that's quite a novel idea.

Thanks for that.