"Reading in bed and breakfasting in bed are two of my three favorite activities."
2.Prepositional phraseRegarding sexual activities.
"She wasn't kind or smart, attractive or even funny. Her only redeeming feature was that she was fantastic in bed.; You've been in bed with the opposite party all year and that's why you keep saying we need to compromise."
3.Prepositional phraseCooperating with, as if for an illicit reward; in league with.
"You've been in bed with the opposite party all year and that's why you keep saying we need to compromise."