Frozen shoulder pain that you can’t sleep at night may be related to catching a cold, localized blood flow slowing down, pain sensitivity at night, and concentration. First, it may be that the temperature is lower at night and catching a cold causes local blood circulation to slow down and severe pain occurs. Secondly, at night when you sleep, lack of movement and muscle relaxation can slow down the local blood flow, thus making the pain a little more pronounced. In addition, usually in the daytime there will be other activities will divert attention, while at night when sleeping, there is no other way to divert attention, attention will be more concentrated than during the day, so the pain will feel unable to sleep. Also, some people are more sensitive to pain nerves at night, resulting in severe pain at night. Can’t sleep with pain at night mostly means that the symptoms are more serious, and you need to seek medical attention in time for active treatment to reduce the pain.