foam odor is in acceptable range
This Seedling 3D Sleep Mask doesn’t seem to have any odors that give me an allergic reaction.  I’ve had bad luck with allergic reactions to odors in the past with similar 3D masks.  This mask has a plastic loop near the temple that I don’t like.  My favorite 3D mask has the plastic loop placed on a sewn-in elastic loop, so that the plastic loop is 4.5” back toward the back of my head.  Better for a side-sleeper like me, maybe not so much for a back sleeper.  Another challenge with 3D masks like this is the pressure on the pillow-side eye-socket, but it’s one that I can live with by finding the spot on the end of the pillow where that pressure is mitigated.  This mask came with a bonus silk mask that I won’t use, and two ear-plugs in a small plastic case that I will use.  The earplug case is a nice touch that I’ll will use after the provided earplugs are done.  I’m hoping I can live with the plastic loop at my temple.  If I can’t I’ll update this review.  If you're a side sleeper, you may want to keep shopping for a mask that doesn’t have a plastic loop right at your temple.
Rating: 3 stars