A heatsink can help with overheating problems.
Nobody wants to deal with problems when they are in the middle of an awesome VR game, but unfortunately from time to time they do occur. One of the most common issues for VR headsets that run off of a phone, is overheating. Your phone ends up working too hard and heating up too much, and when it hits a certain point, it will turn itself off, booting you out of VR in the process. Thankfully, there is something you can do to help this problem.