• atay in bed,
• ztay in bed,
• xtay in bed,
• dtay in bed,
• etay in bed,
• wtay in bed,
• sray in bed,
• sfay in bed,
• sgay in bed,
• syay in bed,
• s6ay in bed,
• s5ay in bed,
• stzy in bed,
• stsy in bed,
• stwy in bed,
• stqy in bed,
• stat in bed,
• stag in bed,
• stah in bed,
• stau in bed

The adjective form of "stay in bed" is "bedridden".