K&H Pet Products Microwavable Cat & Dog Bed Warmer

I use this in an outdoor cat shelter, so it doesn't stay warm as long as it would if used as recommended (for indoor use), BUT it does hold warmth for about 3-4 hours even in temps in the single digits. I warm it for about 6 minutes, then wrap in a towel. Warming tip: when it is about halfway through heating in the microwave, I take it out and mush it around to break up remaining lumps and flip it over to the other side to finish heating. This seems to help get the whole thing melted evenly. I like it because it's soft, unlike some other microwavable heated discs. As it cools, it forms to the cat's body making a little cat body nest shape so he can kind of cuddle into it. I used it HEAVILY I use this in an outdoor cat shelter, so it doesn't stay warm as long as it would if used as recommended (for indoor use), BUT it does hold warmth for about 3-4 hours even in temps in the single digits. I warm it for about 6 minutes, then wrap in a towel. Warming tip: when it is about halfway through heating in the microwave, I take it out and mush it around to break up remaining lumps and flip it over to the other side to finish heating. This seems to help get the whole thing melted evenly. I like it because it's soft, unlike some other microwavable heated discs. As it cools, it forms to the cat's body making a little cat body nest shape so he can kind of cuddle into it. I used it HEAVILY this past month when the temps were very low, warming it several times a day, every day. It has held up very well and I'm going to buy a second one. … more

I bought this thinking it would do well for the feral shelters we put out each Winter. While they're filled with straw I've purchased another item that heats up in the microwave and stays warm for at least 6 hours, but I figured I'd give this a try. It's really suited for indoor use. I heat it and place a towel around it to ensure it's not covered in straw, but the heat doesn't last long. I placed it on the back step, one of the cats hung out on it for a few hours, when I checked it out, it was cold and hard. This isn't a bad item, but not for the feral crew, they deserve to stay warm. This is better suited for an indoor setting.

I have 2 senior dogs under 15 pounds that sleep with me. When I get up to use the bathroom, one or more will have moved into my warm spot and then they pretend not to notice that I am back to reclaim it. I microwave the bed warmer for 5 minutes each night before bed and slip it under my Sheri Best Friend shag throw. I no longer have to give up my warm spot in the bed and the pups are happy. Notes: The inside of the warmer starts out solid but microwaves to a liquid. My dogs weren't too sure about the squishy liquidy sound at first but that wasn't an issue after they got used to it. The warmer will be too hot if you use it without covering it with something like a blankie or slipping I have 2 senior dogs under 15 pounds that sleep with me. When I get up to use the bathroom, one or more will have moved into my warm spot and then they pretend not to notice that I am back to reclaim it. I microwave the bed warmer for 5 minutes each night before bed and slip it under my Sheri Best Friend shag throw. I no longer have to give up my warm spot in the bed and the pups are happy. Notes: The inside of the warmer starts out solid but microwaves to a liquid. My dogs weren't too sure about the squishy liquidy sound at first but that wasn't an issue after they got used to it. The warmer will be too hot if you use it without covering it with something like a blankie or slipping it under the cushion of a bed. It stays warm for a very long time. When I get up in the morning, I microwave it again so it stays warm for the day. Make sure your pet can get off of it by themselves. One dog prefers to sleep right on top and one prefers to sleep next to the heat. My dogs are I are so happy with this product! … more

My 15-year-old Persian was starting to feel her age, especially on cold winter nights. I didn't want an electric bed-warmer because I'm leery of fires, and wouldn't feel safe leaving the house with it plugged in. This microwaveable pad is the perfect solution. If I nuke it for about 7-8 minutes before bed, it'll stay warm all night. I put it under several layers of blankets so it's not too warm at first. As she settles down into her blankets, the warmth comes up through them. She seems a lot more comfortable, and less stiff when she first gets up. Helpful, simple-to-use product!

This is the most efficient and effective heating pad out there for animals. This is wonderful as we bought 3 to interchange throughout the day. Make sure to put the perfect heating time as each one is different we noticed as far as how long to heat for. Skye our indoor/outdoor cat loves this and uses this in particular in her outdoor cottage we built so she still feels like she has her freedom, but with an insulated home for the winter. She's one spoiled baby and we wouldn't have it any other way. She loves this heating pad, even stuck her nails in it and it didn't pop or anything. Works perfectly and lasts throughout the night 8 hours.

This bed warmer was just slightly too large for my microwave oven. So I had to bend it and tie it with twine in order to heat it. It also took a long time to heat, over 7 minutes on high setting. It eventually developed a hot spot at the fold that opened into a hole, and had to be discarded. I think that I could have avoided that by heating it for less time. Overall, I wish that it had held more heat for a longer period of time. That's what led me to heat it for longer periods. But I did buy a replacement that is the same brand and model.

Pros: Large square shape is good, holds heat for longer than other similar products I have Cons: Takes a long time in the microwave to heat up and some material inside never liquifies, emits a chemical smell that is worrisome

Bought this for my dogs 15th birthday. Takes a full 4hrs to warm and then it still has a few lumps of what feels like wax, inside. Keeps warm a full 12hrs though and my dog loves it. I warm it before I go to bed and he sleeps either with it under his head or back all night. Worth the price and I prefer this because there are no wires or things to plug in.

My cat seems to like it. After heating as instructed and placing it in his enclosed condo bed, I had some difficulty getting it back out after it cooled off and solidified because the entrance opening is small for a cat. I should have measured the condo opening size before purchasing this size heater.

My Lucy loves her heater. I buy a new one every 3 years, as it does get worn out. I have even used it at times . Lucy is 15 and her arthritis plays up in winter. "So this works" I just ordered her a new one today. I cover it in a soft blanket and put by her body in bed.. and If she wants to sleep in my bed, I get to stay warm too. Lol