Can confirm for a fact that these guys do supply IHG on certain products bedding wise. Can't say if they supply HI or not but can confirm that their top end products are good and used at some IC's. Link provided in fact by IC'er

https://www.visionlinens.com/

If you can get hold of the housekeeping manager or even a GM at an IC they will almost certainly help. I regularly ask about about hotel fittings and fixtures. Recently at ICDFC and asked about their brilliant design chairs in Anise. They will be more than happy to help you. For most will be a distraction to a dull repetitive day.

P.S Moderator .... not sure if allowed put a link in or not. If breaches regs then of course feel free remove