toward bed; in the direction of going to bed.
From bedward + -s suffix, creating an adverbial form (like 'towards' from 'toward'). The -s creates the adverbial direction form.
British English loves using 'bedwards' as an adverb—'I'm heading bedwards'—while American English prefers 'to bed', showing how the same language can take different paths for the same meaning.
Complete word intelligence in one call. Free tier — 50 lookups/day.