It's true that taking drugs while gambling is not advisable, as some games require deep thought and concentration. If someone is under the influence, they may not be in the right state of mind to make the best decisions. However, some people do choose to gamble while taking drugs to reduce their fear and take bigger risks. This behavior is not limited to gambling and can occur in other activities as well.
When someone takes drugs, he has no control over himself and is never able to make any potential decisions. so if one gambles at that time the chances of loss will be much higher than the gain. on the other hand, when one is in sleep, there is no control. so even if you gamble at that time, there is a very high chance of gambling. so you should not gamble during these two times. The right time to gamble is free time with cool & fresh head.