It took 23 minutes for one of my ChiliPad Cubes to warm the water from the coldest setting of 55 degrees up to the warmest setting of 110 degrees.  That was an extreme test, as the water would be at room temperature normally.  I’m willing to bet that you don’t cool or heat your house to 55 degrees so it probably won’t be that low to start.  On top of that 110 is really hot.  I live in Arizona, so I know and understand 110.  Since I was testing the extremes I wanted to see how hot that feels while sleeping.  After about 30 minutes of trying out 110 degrees, I picked up my remote and moved the settings into the high 80s.
At that point I expected that the Cube would just stop warming the water and let it cool down.  To my surprise it turned on the cold setting (which is a different sound) and cooled the water to the 88 degrees I selected.  After it reached that temperature, I shut the unit off.  What really enhanced the experience is that you can still feel the residual heat way after you have turned the unit off.  This is a pretty sharp contrast from electric blankets.  Generally, after an electric blanket has been off for awhile it returns to room temperature.  It takes much longer for the heat to dissipate from the ChiliPad Cube.  On the flip side, electric blankets get warmer quicker.

Here is where it got really fun.  When I had the temperature cranked up to 110, I also turned on my adjustable bed’s massage feature.  I have mentioned in the past that the massage feature works best on mattresses that are more water bed like with motion transfer.  I was on one of those, Purple, and the massage feature was slushing around the water in the ChiliPad’s tubes.  It’s difficult to explain, but it was by far the best “hands free” massage I have ever had!
Here is a video of the ChiliPad, and a test that I ran with my kids.  I told them to jump in bed and tell me what they feel.  My little one failed the test, but my older one was able to figure out that the ChiliPad was working.

PROS

Works really well with an adjustable bed massage feature
The warm setting is HOT!
The cold setting is COLD!
It definitely helped me fall asleep faster.

CONS

A lot of cords and wires
Why 2 remotes?  Surely one button could have been used to toggle between the 2 cubes.
The ChiliPad was able to successfully regulate the temperature of my mattress by circulating water through those micro tubes smoothly. Most importantly I was able to control MY SIDE of the bed without disturbing my husband, with a touch of a button. A very important thing I must mention, the micro tubes. Those were one of my concerns. I have previously tested a product with a built in wires fitted sheet ( for sleep tracking and bed warming), and I have to say they were annoying at sometimes and now I have micro tubes to deal with! WRONG again.

The soft small silicone tubing, warm water combo helped me fall asleep so quickly I couldn’t even feel them. In fact, I was looking forward to sleep on the ChiliPad every night.

It is also my aching muscles and sore body refuge. True I am no athlete but I am a Mom chasing kids around and a person that is always on the run and all I want to do sometimes, when the day is over and my energy has drained, is to relax and recharge my batteries. Back in the days I had to go see a PT just for cold therapy treatments after suffering from stiff joints and muscle aches (post baby and working at an office for long hours). The ChiliPad cube was able to provide me all this. Save your money because the cold therapy found in it helps improve your circadian rhythm and improve your sleep quality.