If you can keep the door shut to the room where he escaped, so that. They are almost aaaalways within a 10-foot radius of the escape spot. Think dark, warm, and secure. Just be careful moving items while looking so you don’t squish him. And mostly, don’t panic. 😊 Many people on this forum have found a lost snake months later! And many more have found them in a day or less. They are evolutionary powerhouses and luckily, it’s summer.
Just remember that no space is too small or too obscure! I’ve found two different snakes hiding in a closed umbrella in the space between the couch and the wall🙄