Covers a lot of ground

• Spreads out untidily
• Takes up all the space in a bed
• Takes the whole couch, say
• Some urban expansions
• Lies limply
• Sits with bad posture
• Stretches out
• Doesn't lie gracefully
• Stretches, in a way

Wiktionary Word definitions in Wiktionary
n. (context UK dialect English) Small branches of a tree; twigs; sprays. vb. (en-third-person singular of: sprawl )