Honestly I’ll have to look but no I don’t believe so. Just some random recommendation from a reddit comment a couple years, with multiple people praising this pillow and I’d just gotten a really nice new expensive king size bed so I said fuck it, pillow splurge time. I think I got 2 king size pillows for 160.
Edit- 200 total for 2 king pillows and I accidently got queen pillowcases instead of king and had to return them but they sent kings free of charge. so yeah, maybe get the smallest one sans pillowcase first and see if you like it. it’s a big purchase but I certainly don’t regret it. The site says it’s $84 for the cheapest smallest single pillow. sleepgram.com/pages/adjustable-pillow