Meaning: She was in a deep sleep and felt comfortable and secure in her bed.
Choice of Words:Soundly means in a deep sleep. Cozy means comfortable and inviting.
Alternative Expressions
She was fast asleep in her warm and fluffy bed.
Meaning: This means that she was sleeping very deeply in her comfortable bed.
Choice of Words:Fast asleep is an idiom that means to be sleeping deeply. Warm and fluffy describe the bed as being comfortable and inviting.
She slumbered peacefully in her snug and inviting bed.
Meaning: This means that she was sleeping peacefully in her comfortable bed.
Choice of Words:Slumbered is a more formal word for slept. Peacefully means without disturbance. Snug and inviting describe the bed as being cozy and comfortable.