@james_hayward: Chibijenova on the site made them! You can send her a tweet to @Chibijenova or go to her Etsy store (https://www.etsy.com/shop/phoenixfirearts). She might be willing to make more if there is enough interest. The last set she made was 5 hoops.
My husband decided to go in for a sleep study in January, in part because of Ryan. He was diagnosed with moderately bad sleep apnea and got a cpap two weeks later. For anyone worried about the cpap making too much noise, his is quieter than a ceiling fan and much quieter than his snoring. I've made him promise to never sleep without wearing it, naps included! I still remember shaking him in the night when I realized he wasn't breathing. It was terrifying. Please, talk to a medical professional if you think you have sleep apnea. It is an easy problem to diagnose and fix!