Can you recommend some optimal headphones to use with iAwake products?

5 Hz – 30,000 Hz Studio/Audiophile grade headphones with excellent reviews: 

 

Here are some of the headphones people within the community have been recommending and finding helpful:

 

Inexpensive but decent reviews:

 

Earbuds

  • SONY (most in the 5 hz – 28,000 hz range)

 

SleepPhones® (for people who have trouble sleeping)

Yuni Headphones (single-sided stereo headphones for people with hearing loss in one ear)