Sure :)
I know the ice pack is an extra link but just in case anyone is curious :)
I went for the "get a bigger boat" strategy. I like these big boys. They don't last the full 8 hours they claim but they're still pretty cool 6 hours in.
You could tuck a second one into just a little foam cooler in the bedroom and swap them out if you wake up when the first one warms up.