There are different elements. On the CD there are actually different tracks of white noise to help people sleep or relax in a different environments. There's a self-administered treatment that is also included on this that guides people step-by-step on how to get rid of bad dreams or how to facilitate sleep onset, for example. It's basically material that we use in the clinic that we made more interactive and streamlined even further, so that people could use it.
Yes, we can detect sleep disturbances or vulnerability to sleep disturbances before people deploy. Because sleep is a modifiable behaviour, we can also train people ahead of time to get more consolidated sleep or get more bang for their buck, basically, so that when they can sleep, when the opportunity presents itself, they can get the most out of it, get the most sleep that they can. The use of scheduled naps is an example. There are different strategies that are applicable well before deployment, during training, to enhance not just sleep health, but also mental readiness.