WoodyKnows Dynamic Nasal Dilators | Sleep Sports Breathing Aid | Soft Comfortable Nose Vents | Improve Breathe Airflow | Snoring Congestion Relief | Right Anti Snore Solution (Trial XS/S/M/L）

Packaging: These arrived in a neat little box inside which was a nice plastic case that held the different sided nasal dilators. The approximate diameter of the nostril dilators are:Xtra small: 0.8CMSmall: 1.1CMMedium: 1.4CMLarge: 1.7CMUse: I have a deviated septum and this causes me issues sleeping at night. The chance to test these was great. Maybe they could fix my issue of struggling to breathe at night without surgery? One thing is for certain is they do the job they’re designed for. Sizing can be a little tricky, in mu case I was between sizes, the smaller didn’t quite open enough and the bigger was like trying to put a cork in a bottle.After a few nights sleep I can safely say they definitely open your nose and allow you to breathe easier. However in my case it sadly doesn’t solve my breathing difficulties. It most definitely helps but not as much as I’d hoped. They can take a little time to get used to but I was surprised I didn’t find it that distracting/uncomfortable to have in my nose at first. In the morning my nose did feel a little achy. Till early afternoon I could still feel the sensation when the dilators have been in my nose.Final Thought: I think these are great for people with “normal” noses and can help you to breathe better. One things of note is these will not open up your sinuses. These cycle on a roughly 30 min-6 hour cycle between each nostril and this is natural. The only way to open your sinuses would be to use a steroid spray. Long term use is not recommended and while these help they do not solve the underlying problem.I’d also be carful on what size you choose, too big can be uncomfortable and too small might not be that effective.

Would be miraculous if something like this could really improve sleep. In reality, they do somewhat hold the nostrils more open, but can't help with other issues around breathing. At least there are different size ones to try out before you commit to purchase some for ongoing use. Probably most useful for exercise or relaxation.