If you have ever wondered what – or who – your partner dreams about, there’s an app for that.

Curious people can use their smartphone to record what their partners say in their sleep, perhaps revealing details and desires they might keep to themselves during the day.

The Sleep Talk Recorder app listens for noises while people slumber and starts recording the second it hears any mumbling during the night.

Upon waking the next morning, users can check their smartphone and listen to what they or their partner has blurted out during the night.

They can also share a clip of their sleepy musings on Facebook or Twitter.

The sensitivity of the iPhone app, which costs 69p (about R12), can be adjusted to give people the best change of capturing any sleep talking.

Martin Lindau from Gothenburg, Sweden, came up with the idea for the app and said: “Sleep Talk Recorder monitors your sleep, but it’s not just an ongoing recording.

“An advanced filtering function qualifies sounds and triggers Sleep Talk Recorder technology in a millisecond.

“We think most people are curious of what is happening during their sleep and when they’re not conscious.

“So we thought that it must be a way to catch this in an easy way using your smartphone.” – Daily Mail