Simplify the following text for a Grade 4 native English-speaking person.
Original: They found Plath dead of carbon monoxide poisoning in the kitchen , with her head in the oven , having sealed the rooms between herself and her sleeping children with wet towels and cloths . At approximately 4:30 am , Plath had placed her head in the oven , with the gas turned on .
Simplified: She sealed the room she was in with wet towels , turned the gas oven on and put her head inside the oven .