I haven't tried the items yet as I won't be travelling until later this year but I can review based on my initial thoughts and experience.

I'm glad this bundle exists because I was looking for a good eye mask in addition to a neck pillow, and the passport holder is a bonus.

Trtl Neck Pillow in 'COOL':

I am excited about using this and really hoping it'll allow me to get some good sleep on the plane. I often travel on long (10h+) flights and have trouble sleeping. I appreciate that it comes in the 'cool' material. You can tell right away that it is cool to the touch and won't heat up while wearing it; highly breathable material. My friend has the original and it's much different - very warm and cozy material. I think I will like the cool version. The neck cradle part is a bit confusing and I'm sure it'll take me some time to figure out how to get comfy.

Eye mask:

This is a very comfortable eye mask. The material is soft, the eye cups are cushiony, and it's great that everything is removable and customizable. The portion that ties around your head is quite comfortable and doesn't seem like it'll irritate my ears (unlike a traditional strap), which is great especially since I have some ear piercings. I think this will be perfect for my needs.

Passport holder:

It's nice that the bundle comes with this "gift". It came with a strong smell so I'm hoping that'll air out. It does fit a Canadian passport although it's pretty tight, and the holder doesn't stay fully closed (either…