The Happy Sleep product package comes with a 3x12 min audio DSA sound.
Depending on your personal affinity, you have the option of choosing 1 of 3 the right DSA sound record.
It is necessary to listen to 1 DSA sound record (12min) every night and repeat it until the insomnia (and all Sleep disorders) is resolved. The conditions in the room should be: silence, darkness, adequate temperature that suits you and a comfortable bed. You can also use Happy Sleep just before going to bed, for example, the armchair living room, if you prefer, with the above ambient conditions (it is important that no one interferes with you).
Happy sleep playback with as clean a sound carrier as possible (PC, music line, bluetooth speakers, smart mobile phone ...) Use Happy sleep until the time of insomnia, and you can continue after that because it can not harm, on the contrary, Happy Sleep will have a positive effect on the overall condition and immunity of the body.
When using Happy sleep in the same room, other people who do not have insomnia and sleep apnea may be present, because Happy Sleep affects them only positively.

Happy sleep, your brain perceives and accepts 100%, and what you hear as a soundtrack is only 3% while 97% is a DSA - Designed sound algorithm.