Wanted: IKEA 365+ MJUK pillow -> Purchased: GOSA LILJA

Small interim report: I am now the proud owner of the GOSA LILJA because it really convinced me when trying it out at Ikea - and I also tested in the bed department of another large furniture store, so I have gone through quite a few branded pillows.

And what can I say... Two nights on the pillow, two nights of poor sleep, twice waking up with slight neck pain!

Do I have to get used to the pillow first (I never had a neck support pillow before), am I wrong - or does it just not "fit" even though it actually feels great? Has anyone else experienced this?

And just in case: Does the 90-day return policy also apply to pillows?

Edit: The third night was definitely better. I can still feel my neck, but it has gotten better and not worse. And I also slept better. So it really seems to be just a matter of getting used to it.

Thanks for asking. After two quite good nights on the pillow, I was traveling for two and a half weeks and couldn't continue "practicing." And of course, now that I'm back, I'm annoyed again with the same initial difficulties. But since I have already (albeit only for two nights) slept well and without tension on it, I'll give the pillow at least another week. Because actually, it still feels very comfortable.