My apartment is cold, and what I want more than anything in the world, right now, is a onesie made with panels of magical self-heating fabric. I would never take it off: not in the shower, not when I journey into the outside world to hunt for rations, not for the nocturnal mating call of my lovelorn man-friend, not ever.
I’m sure the heated sections could be placed more helpfully, but I guess I was going for an aesthetically pleasing effect. I realized only afterwards that I gave it a heated crotch. Ahem.
marianchurchland.com 
I have been looking everywhere for something like this. My Girlfiend is constantly seeking warmth in what ever capacity. I suggested the idea of a heated onesie. She thought it was a marvellous idea.
Are you selling these or is it still in the conceptual phase?
I was thinking that you could use some sort of fabric that held heat after being put in the microwave
I was searching for something like this anyone that suffers from an illness where heat helps soothe the pain will tell you that this would be a godsend. Dont think youd need to warm your crotch though ha ha :)
Garment Technology International Limited UK. Are in the Process of developing a Onezie for this very purpose.Right Now. For the elderly and the fashionable too. itw777@aol.com
Hey there! This post couldn’t be written any better! Reading through this post reminds me of my old room mate! He always kept talking about this. I will forward this write-up to him. Fairly certain he will have a good read. Thanks for sharing!
i am a young inventor working on a prototype .. would anybody be interested in testing my prototype?
Obviously it would be at your own risk and any deaths caused by electric shock would not be liable.
Please contact me if interested
Brilliant idea! Think about what everyone would save on heating bills. After all we don’t really need to heat up a whole house, we just need to heat up us! What about one filled with wheat or something similar that would retain the heat after being put in the microwave. You’d have to have 2 of course so that you didn’t have to stand there freezing whilst waiting for it to heat up! I’ve got an electric throw which is great, I sit with it around me. I have considered buying more than one and making my own onsie.. trouble is you’d have to walk around attached to an extension lead!