warning, work in progress; questions, bug reports and pull requests welcome. Reach me at Twitter @statebox or plain e-mail [email protected].

Retrieve sleep-monitoring data using NodeJS

Beddit is pretty cool sleep monitor that uses a pressure sensor to deduce your heart and breathing rates (respiration), sleep cycles, and a bunch of other things. This technique is called Ballistocardiography.

Just for fun, here is a 2003 publication where they erect a whole "BCG suspension table" to carry the person. So while non-invasive to the sleeping human, this is not as non-invasive to your bedroom as the Beddit sensor strip! :-)

Their API is described here and this library wraps it up for use with NodeJS.

How can I use this library?

Simply add beddit-api as a dependency to your node project and then try this:

var beddit = new Beddit();
beddit
	.login(argv.user, argv.pass)
	.then(function(auth) {
		beddit
			.sleep()
			.then(function(sleep_data) {
				console.log(prettyjson.render(sleep_data));
			});
	});

(Yes, I know you need to thread the beddit var down into the post-authentication handler. This is ugly and can be avoided and I'll solve this when I have time.)

What else

I wrote a small commandline tool that you can use in scripts. It uses this library, check it out.