Speech-language pathologists can earn the Certificate of Clinical Competence in Speech-Language Pathology (CCC-SLP), offered by the American Speech-Language-Hearing Association. Certification satisfies some or all of the requirements for state licensure and may be required by some employers.
The effect of lavender on sleep has also been studied. The inhaling of lavender odour during sleep has been observed to reduce the respiration frequency (you breathe in and out less), which is commonly used as an indicator of relaxation and sleep depth.
A half-hour before going to bed, take a bath or eat a light snack to start getting drowsy. A warm bath, especially with a little lavender oil, will slow down your body's activity and make it easier to fall asleep. A light snack will do the same thing, creating a pleasant sense of drowsiness.