There are many places where one can find a sleep disorder diagnostic test form online. One can find a sleep disorder diagnostic test form online at popular on the web sources such as Help Guide and Web MD.
The National Sleep Foundation has numerous articles on the subject. The site also offers various products for insomnia such as the Delta Sleep System CD.
You can find sleep comforters online on the following online stores; Saveoursleep, Your Cheeky Monkey, The sleep store, Overstock, and Bed Bath and Beyond online store.
Your friend will be able to find a practice version online for a diagnostic medical sonography test but this will not be like the genuine one and the question and format may be a lot different.
You can find automotive diagnostic tools and equipment online at websites such as Chinavasion and Harbor Feight Tools. You can also find some locally at your nearest Sears retail store.
There are several online retailers that one can find Sleep Sacks. These websites include Amazon, Walmart, REI, Coleman, Target, Overstock, and TheNorthFace.
None are diagnostic of the disorder, but PET scan and FMRI scan can show differences in metabolism. These differences can sometimes identify different moods.
One can find information on Auditory Processing Disorder from many websites. KidsHealth, Wikipedia, and National Center for Learning Disabilities provide information about Auditory Processing Disorder.
There are many websites that offer information about Seasonal Affective Disorder. MayoClinic.com and WebMD.com both have information on the disorder also know as SAD.
Prices for 'The Sleep Station' can be found online on the official The Sleep Station website. Prices can also be found on the Trip Advisor website for more convenience.
Without knowing where you are, I can't give specific advice, but here's an accrediting body that accredits sleep centers nationwide: http://www.sleepcenters.org/
When you need to find out more about getting your diagnostic medical sonography license, I suggest you take a look at one of the online universities. They will list the options including the costs involved in earning your diagnostic medical sonography license.
You can find computer diagnostics from a variety of online sources one of which is lifehacker which advertises the five best computer diagnostic tools such as the ability to diagnose and fix a slow running computer.