Samson intended to sleep with his wife. This can be stated clearly. AT: "I will go to my wife's room, so we may sleep together" (See: [[rc://en/ta/man/translate/figs-explicit]])
The phrase "her room" is understood from what Samson said to himself. It can be repeated here. AT: "would not permit him to go into her room" (See: [[rc://en/ta/man/translate/figs-ellipsis]])