A free program for Android, by MadinSweden.

Sleep Talk Recorder is a new audio recorder for people who talk in their sleep. In this app, you can record your own voice, your friend’s voice, or the sound of your own laughter or a creepy nightmare. With a little bit of imagination, you can create a whole lot of funny audio clips.

You can play your clips back and listen to them for yourself. This is not just an audio recorder. It’s also a sound recorder! If you record a sound in the app, you can play it back.

If you want to know what’s going on in your head during the night, you can use the advanced filtering function of Sleep Talk Recorder. This function will detect the sounds that you’re recording and save them in a history. You can search the recordings in the history and play them back.